Buying and selling on social media and online marketplaces has become completely normal — which is exactly why it’s become such fertile ground for fraud. Fake listings, non-existent products and sellers who vanish after payment are common enough that it’s worth knowing the specific red flags before you hand over any money.
How these scams typically work
According to Take Five to Stop Fraud, the UK’s national fraud-prevention campaign backed by banks and law enforcement, criminals commonly list items that don’t exist on online marketplaces and advertise non-existent products on social media. The pattern is consistent: an appealing listing, often at a price that seems like a genuine bargain, draws in a buyer who pays before ever receiving anything — and the item was never real to begin with.
Take Five’s core advice on spotting this kind of scam starts with a simple instinct check: be suspicious of any offer that seems “too good to be true.” Genuine sellers clearing out unwanted items do exist, but a pattern of unusually low prices across multiple listings from the same account is a signal worth taking seriously rather than dismissing as luck.
Protecting yourself before you pay
A few specific, practical habits make a real difference:
- Go direct, not through links. Type the website you’re buying from into your browser yourself rather than clicking a link from an email or social media post, since a link can lead to a convincing fake page rather than the genuine marketplace or seller.
- Avoid bank transfers for strangers’ listings. Bank transfers offer very little recourse if something goes wrong, unlike payment methods built with buyer protection in mind, so treat a request to pay this way as a red flag.
- Use the secure payment method the platform provides. Stick to the payment system the marketplace itself recommends rather than being persuaded to pay a seller directly outside its own checkout.
- Do basic research on the seller. Look into the company or seller you’re buying from and check their reviews before committing to a purchase, particularly for higher-value items.
Recognising pressure to move off-platform
One of the more consistent patterns in marketplace fraud is a seller trying to push the conversation, and the payment, away from the marketplace’s own messaging and payment systems and onto a private channel like WhatsApp or direct bank transfer. Legitimate sellers on established platforms generally have no strong reason to insist on this — it’s usually because it strips away the platform’s own buyer protections and makes the transaction much harder to trace or reverse.
What to do if a listing looks suspicious
- Check whether the seller’s account is newly created or has little to no prior selling history or reviews.
- Be cautious of sellers who refuse to meet in person for local items, or who always have a reason a video call or additional photos aren’t possible.
- Treat any pressure to “pay quickly before someone else gets it” as a red flag rather than genuine urgency.
- Report suspicious listings directly to the platform (Facebook, Instagram, Marketplace, etc.) using their built-in reporting tools.
If you’ve already been scammed
Take Five’s guidance is clear and immediate: contact your bank straight away if you think you’ve been scammed, and report it to the police at reportfraud.police.uk or on 0300 123 2040. Acting quickly gives your bank the best chance of intervening, particularly if a payment hasn’t fully cleared yet, and creates an official record that can support wider action against repeat offenders.
Selling as well as buying carries risk
It’s worth remembering that marketplace fraud doesn’t only target buyers. A common variation involves someone contacting you as a seller, claiming to have paid, and sending a convincing but entirely fake payment confirmation email designed to look like it’s from a payment platform or your bank. If a “buyer” ever claims to have sent payment and asks you to ship an item before that payment has actually cleared and is visible in your own account — not just in a screenshot or forwarded email — treat that as a serious warning sign and don’t send anything until you’ve independently confirmed the funds have genuinely arrived.
A quick pre-purchase routine worth building as a habit
Rather than treating each of the checks above as a separate, occasional task, it helps to build them into a single quick routine you run through automatically before any marketplace purchase from someone you don’t know: check how long the seller’s account has existed, glance at their other listings and any reviews, do a quick reverse image search if the price feels unusually good, and confirm you’re paying through the platform’s own secure system rather than being redirected elsewhere. Once this becomes habitual, it adds only a minute or two to a purchase while meaningfully cutting your exposure to the most common scam patterns.
The bottom line
Most marketplace and social media purchase scams rely on speed and pressure — getting you to pay before you’ve had a chance to think it through properly. Slowing down, sticking to secure, traceable payment methods, and treating “too good to be true” prices with genuine suspicion covers most of what you need to shop safely on these platforms.