Marketplace messages that don’t add up
Every one of them needs a reason you can’t just meet.
Last updated
Not romance
Almost every marketplace scam has to solve the same problem before it can work: it must produce a reason you cannot do the ordinary thing — meet, look at the item, hand over cash or use the platform’s own payment system — which means the story always arrives carrying its own excuse for why the safe version is impossible. Not a lie detector. Inconsistency is not proof of deception, and plenty of honest people write terrible listings, answer questions vaguely, and genuinely cannot meet. What this page teaches is a pattern that repeats across a huge number of unrelated cases, and a way of proceeding that is safe whether or not the person you are talking to is honest — which means you never have to make an accusation to protect yourself.
It covers both sides. Most guidance on marketplace fraud is written for the buyer, which leaves out the person who put a sofa up for sale and now has eleven messages, four of which are strange in ways they cannot name. The seller-side scams are different in mechanism from the buyer-side ones and in some respects more dangerous, because they aim at your accounts and your bank rather than at the price of the item.
What are you actually testing in a marketplace message?
You are testing one thing: whether the message can be true and safe at the same time — whether the arrangement being proposed still works if the person on the other end turns out to be dishonest.
This reframing does most of the work on this page, because the question “is this person a scammer?” is unanswerable from a text thread and the question “would this arrangement survive them being one?” is answerable in seconds. Cash on collection after inspection survives a dishonest seller. A bank transfer for an item that will be posted does not. Meeting in a supermarket car park at midday survives almost everything. Sending a verification code survives nothing. You are not making a judgment about a stranger; you are choosing between arrangements with different failure modes, which is a decision you are entitled to make without justifying it.
It also removes the social pressure that these approaches are built on. A polite, plausible, chatty message makes it feel rude to insist on the boring version — and the politeness is not incidental, it is the working part. When your rule is about the arrangement rather than about the person, refusing costs nothing: “I only do collection in person with cash” is not an accusation, requires no reasoning, and is a complete answer to a request you find odd. Honest counterparties accept it constantly. The pattern this page describes cannot.
Which opening messages are normal and which ones are not?
The overwhelming majority of odd-looking opening messages are normal: “is this still available”, a one-word “price?”, a lowball offer with no greeting, and a message that repeats your listing back at you are all ordinary marketplace behaviour, not signals.
Platforms have made the first of these into a single tap, which is why it arrives so often with nothing attached, and low effort in an opening message tells you about the effort rather than about the intent. The same goes for bad spelling, blunt phrasing and messages sent at three in the morning. Treating those as red flags mostly means treating people who type on a cracked phone during a night shift as criminals, and it will not protect you from anything, because the messages that matter are frequently the polite, well-composed ones.
What separates a real opener from a scripted one is whether it engages with the specific item. A genuine buyer asks about the thing — the size, whether it fits through a doorway, whether the receipt is there, how many miles, why you are selling. A scripted approach moves straight to logistics without ever establishing interest in what is being bought: it agrees to the full asking price without negotiating, does not ask a single question about condition, and proposes a payment and delivery method within the first two or three messages. Full asking price plus no questions plus an immediate logistics proposal is a combination almost no ordinary buyer produces, because ordinary buyers care what they are getting.
Seller side: what do the buyer messages that don’t add up have in common?
Buyer-side approaches share a single objective: getting something out of you — a code, a refund, an account detail, or the goods — before any money you can actually spend has arrived in an account you have personally checked.
The recurring shapes are worth knowing by name. The overpayment: a payment arrives for more than the price, apparently by mistake, with an apologetic request to send the difference back — and the original payment later reverses while your refund does not. The courier: an insistence on arranging their own collection for a local item, arriving after a payment confirmation you were shown rather than received. The screenshot: a convincing image of a completed transfer, sometimes carrying a real bank’s branding, offered as proof of a payment your own balance does not show. The shipping-fee variant: a message claiming the platform or the payment provider is holding your money until you pay a release or shipping charge, which is not how any of them work.
All four are defeated by one habit that requires no judgment about anybody. Log in to your own bank or payment app yourself, from the app rather than from any link you were sent, and confirm the money is present and available — not pending, not shown in a screenshot, not stated in an email. Then hand over the item. That sequence is not rude, it costs a minute, and it makes every one of these approaches fail without you ever deciding whether the person was trying it on. If a buyer objects to it strongly, that reaction is itself the clearest information you will get.
The one that is not about the item at all
A distinct seller-side approach ignores the sale entirely and targets your accounts: the buyer says they need to check you are a real person, that they have been scammed before, and asks you to confirm a code they are about to send. Your phone receives a genuine verification text and they ask you to read it back. Nothing about this is related to the item, and the item was never the point — the code completes a login or a registration that needs your number, which is used to take over an account of yours or to create one in your name for use against other people. There is no legitimate reason for one private individual to need a code sent to another’s phone, which makes this the rare marketplace signal that requires no weighing at all.
Buyer side: what do the seller messages that don’t add up have in common?
Seller-side approaches share a structure in which the item is real in the photographs and unavailable in person: the price is unusually good, the reason for the price also explains why you cannot come and see it, and payment is required before any exchange.
Watch how tightly the backstory couples the two facts. The seller is emigrating next week, or has been deployed, or is clearing a late relative’s house from another city, or has already moved for work and left the item in storage. Each of those is a real circumstance that real people are in, and each does double duty here: it justifies the low price and it removes the possibility of inspection in the same breath. That coupling is the marker rather than either half alone. A cheap item you can go and look at is just a cheap item; a cheap item whose cheapness is explained by the same fact that prevents you seeing it is a structure.
Two further checks are quick and do not require accusing anyone. First, take a distinctive sentence from the listing and search for it, and do a reverse image search on the main photograph — listings assembled from other people’s adverts show up elsewhere, sometimes in another country and another currency. Second, look at what the seller will do live: a person holding an item can photograph it today with your name on a piece of paper next to it, and a person who has only a folder of images cannot. Neither check is proof. Both are cheap, and the second one converts an unanswerable question about honesty into a specific request with an observable outcome.
Why does the story always explain why you can’t meet?
The story always explains why you cannot meet because meeting is what a local marketplace is for, and any arrangement that extracts money without an exchange must first make the exchange impossible — so the excuse is not a detail of the scam, it is the load-bearing element.
This is the most useful single idea on this page, because it works without knowing any of the specific scams. You do not have to recognise the overpayment pattern, or the courier pattern, or the storage-facility pattern. You only have to notice that the conversation has produced a reason the ordinary local transaction cannot happen, and that the reason arrived unprompted from the other side. Reasons you introduced yourself — you are the one who cannot drive, you asked about postage — do not count and are not part of this test. It is specifically the unprompted removal of the in-person option that matters.
Read it fairly, because the innocent version is extremely common and you will meet it constantly. Plenty of honest sellers post items, will not have strangers at their home address, work hours that make meeting hard, or are selling on behalf of a relative in another town. The distinction is not whether an obstacle exists but whether an alternative is offered. An honest person with a genuine obstacle proposes a workaround: a different meeting place, a friend who can hand it over, the platform’s own protected postage, a video call to show the item. The pattern this page describes produces obstacles without alternatives, or offers exactly one alternative that happens to be irreversible. Count the alternatives offered from their side, not the obstacles.
What should you ask, and what does a real answer look like?
Ask one question whose answer requires physical possession of the item right now — a photograph of it beside today’s date in your handwriting, a video of a detail you specify, or a serial number from a location you choose — because that is the only class of question a folder of stolen images cannot answer.
The design rule is that you pick the target, not them. “Send me more photos” is answered from the same folder the listing came from. “Send me a photo of the underside of the seat with a piece of paper saying my name and today’s date” cannot be. Same on the buyer side of a seller’s check: if you are selling and a buyer wants reassurance, this is what you give them, and it takes thirty seconds. The request is standard enough on high-value items that most people recognise it, and a seller who treats it as an insult is responding oddly to a request that costs them nothing.
A real answer is the photograph, usually with a comment about the state of the room, and typically slightly worse than the listing images because it was taken quickly in bad light. What is not a real answer is a reason. The item is in storage, the phone camera is broken, they are at work until Friday, they will send it once the deposit is down — each of these might be true, and none of them is the thing you asked for, and the correct response to all of them is the same: to wait until the item can be photographed, or to buy something else. You are not calling anyone a liar by declining to pay before the check you asked for has happened.
Questions that do not work
Some popular tests are worse than useless and are worth dropping. Asking whether the person is a scammer produces a denial from everybody, honest and otherwise. Asking for a phone call proves only that a person exists and can talk. Checking that the profile is old and has photographs is weak now that compromised long-standing accounts are routinely used for exactly this, so an established-looking profile should not lower your guard about the arrangement itself. And judging by writing quality selects for fluency rather than honesty. Keep the tests that require physical possession, a cleared payment, or an in-person exchange, and discard the ones that only require someone to type a sentence.
What if you are wrong and they are just a bad texter?
If you are wrong, nothing happens — because the entire method here is a set of terms you propose rather than a conclusion you announce, and an honest counterparty simply agrees to them.
Notice how little of this page requires a verdict. Meeting in a public place, paying with a disputable method, confirming money in your own account before handing over the goods, asking for a dated photograph, refusing to send codes — a person can take all of these without ever forming an opinion about who they are talking to. That is deliberate. Most people who feel uneasy about a marketplace message are not uncertain about what to do, they are worried about being rude to somebody who may be entirely genuine, and this is the way out of that: the terms are about you, not about them, and you never have to explain them.
Keep the base rate in view as well. The overwhelming majority of marketplace transactions are honest people selling ordinary items badly, and a policy of suspicion will cost you more good deals than it saves you bad ones. The point is not to become vigilant. It is to have three or four fixed rules that make vigilance unnecessary — the same reasoning as the promise ledger for a stalled job, where the fix is a procedure rather than a character judgment.
What do you do once you have decided not to go ahead?
Report the account to the platform, stop replying, and — if any money has already moved — contact the payment provider immediately, because recovery routes are time-limited and are the only part of this that has a deadline you do not control.
Report before you block, because on most platforms blocking first makes the conversation harder to submit as evidence, and the report is what removes the listing and the profile from other people’s feeds. Screenshot the listing, the profile and the thread first, including the URL or the account handle, since these accounts disappear quickly once reported. Do not send a final message explaining what you have worked out — it achieves nothing, and on the seller side it invites retaliatory reports against your own listing, which is a real and irritating consequence.
If money has gone, the method decides what is possible: card payments and the platform’s own protected checkout can usually be disputed, and there is a time limit on doing so; bank transfers, gift card codes and cryptocurrency very rarely can be, which is the whole reason they were requested. Report the fraud itself as well as the account — in the United States to ReportFraud.ftc.gov and to the FBI’s Internet Crime Complaint Center at ic3.gov, and in the United Kingdom to Action Fraud, or Police Scotland if you are in Scotland. Then keep the thread rather than deleting it, since it is the only record of what was promised and when. If you want to see the sequence laid out — when the price was agreed, when the meeting became impossible, when the payment method changed — paste it into the timeline tool below, which runs entirely in your browser, or run the conversation through the analyser. The question worth answering before you send anyone money is not whether they seem honest. It is what would happen to you if they were not.
Check the neighbouring dispute the same way
- When someone keeps saying “tomorrow” — the method this page uses, step by step.
- Is this a romance scam? The patterns that repeat — Not a verdict about one person. A structure that recurs.
- Landlord and repair texts: building the record — What was wrong, when they were told, what they promised.
Free tool · runs in your browser
Not a lie detector. Inconsistency is not proof of deception. This counts what is in your thread — timestamps, gaps, wording. It cannot tell you whether someone is lying.
Nothing you paste leaves this browser. No account, no upload, no model call.
This counted the gaps. It cannot read the messages. Run the actual conversation →
Common questions
- How can you tell if a Facebook Marketplace message is a scam?
- The most reliable test is not the wording of the message but whether the sender’s story requires you to abandon the protections a local marketplace normally gives you. Almost every marketplace scam has to produce a reason you cannot meet in person, a reason you cannot pay in the platform’s own system, or a reason you must send or share something before anything is exchanged. A message that arrives with all three built in is the pattern, and it works as a test even when the message itself is polite, well written and specific.
- Why does a buyer want to send a courier instead of collecting?
- A buyer who insists on arranging their own courier for a local item is removing the exchange point where you would normally see their money and they would normally see your goods. The standard version has the courier arriving after a payment you are shown a screenshot of but never receive, or an overpayment you are asked to refund the difference on before the original payment reverses. Some buyers genuinely cannot collect, so the request alone is not proof — but a courier arrangement is only safe if the money has cleared in your own account first and you have checked the balance yourself rather than trusting a receipt they sent.
- Should you ever send someone a verification code from a text message?
- No. Never send anyone a verification code, on a marketplace or anywhere else, whatever reason they give. A buyer or seller asking you to receive a code and read it back is not confirming that you are real — that is not something codes do — they are completing a login or a signup that requires your phone number, most commonly to take over an account of yours or to create a new account in your name. There is no legitimate version of this request between two private individuals, which makes it one of the very few marketplace signals that needs no further interpretation.
- Is a deposit ever reasonable to hold an item?
- A deposit to hold an item is normal in some markets and is also the mechanism behind a large share of marketplace fraud, which makes it a poor signal on its own and a decision about exposure instead. The workable rule is to make the deposit an amount you are prepared to lose, pay it by a method that can be disputed rather than by bank transfer, gift card or cryptocurrency, and never pay a deposit on an item you have not seen in a live photograph or video you specifically requested. If the seller will not take a disputable payment method for a deposit, that preference is the information.
- What should you ask a seller to prove they actually have the item?
- Ask for something only the person holding the item could produce right now: a photograph of the item next to a piece of paper with today’s date and your name written on it, a short video of a specific detail you name, or the serial number from a location you specify rather than one they choose. Stock photographs, reused listing images and images taken from another site all fail this test instantly, and a genuine seller finds it a minor nuisance rather than an insult. If the answer is a reason the photograph cannot be taken today, the reason is the answer.
- Do inconsistencies in a marketplace message prove someone is a scammer?
- No, and it is worth being clear about this: inconsistency is not proof of deception and this is not a lie detector. People sell things while distracted, describe items badly, get details wrong about something they inherited, write in a second language, and give vague answers because they are busy rather than because they are lying. The point of reading a marketplace thread carefully is not to reach a verdict about the person — it is to decide whether to proceed on terms that would be safe whether or not they are honest, which is a decision you can make without accusing anybody.
- Where do you report a marketplace scam and what happens to the money?
- Report the account to the platform first, because that is what gets the listing and the profile removed before it reaches someone else, then contact the payment provider immediately since that is where any chance of recovery lives and it shrinks with time. Card payments and platform-protected payments can often be disputed; bank transfers, gift cards and cryptocurrency very rarely can be. In the United States, report the fraud itself to ReportFraud.ftc.gov and to the FBI’s Internet Crime Complaint Center at ic3.gov; in the United Kingdom, to Action Fraud, or to Police Scotland if you are in Scotland.
A suspicion score, not a lie detector. It measures what does not line up — nothing more. Everything else is your call, which is the only place it can honestly sit.