A woman from Stockport who paid £400 for a second-hand Prada handbag on Vinted later discovered it was counterfeit, according to a recent BBC report. What makes the case particularly interesting is that the buyer, Dani Bekyarova-Delev, had paid an additional £10 for Vinted's own authentication service before accepting the purchase.
The bag passed the check.
Bekyarova-Delev told the BBC she had been confident enough in the verification to accept the order, releasing payment to the seller. Doubts emerged later after she visited a Prada store at the Trafford Centre, where staff did not recognise the bag. She subsequently paid for an independent authentication service, which concluded that it was fake.
Vinted refunded her after the BBC contacted the company. The marketplace said its verification service uses trained specialists who examine characteristics including stitching, logos and materials, and that supporting documents can also be reviewed. Buyers who still have doubts following verification can raise an issue within the relevant buyer-protection period.
The case exposes one of the more difficult problems facing the expanding resale economy. Counterfeits have become sufficiently convincing that authenticity can sometimes be disputed even after a product has gone through a formal verification process.
For the UK's growing live-selling industry, that problem takes on another dimension.
Live selling is changing how quickly second-hand goods move
Platforms such as Whatnot have made it possible for resellers to move significant quantities of stock through live auctions, while TikTok is pushing further into live commerce in the UK. Branded fashion, trainers and accessories sit alongside collectibles, electronics, beauty products, customer returns and the increasingly popular liquidation and returns stock that many live sellers now trade.
The difference between live selling and a conventional marketplace listing is speed.
A buyer looking at a designer bag on a traditional marketplace might spend time examining photographs, comparing labels and checking the seller before purchasing. In a live auction, the same buying decision can happen in less than a minute.
That puts considerably more weight on the reputation of the seller and, behind them, the provenance of their stock.
It also makes the counterfeit problem more complicated than simply identifying dishonest sellers.
A reseller can buy branded goods from a wholesaler believing them to be genuine. A wholesaler may have acquired them through another distributor, liquidation channel, customer returns or another reseller. Second-hand goods can pass through several businesses before reaching the person eventually selling them to the consumer.
If a counterfeit enters that chain early enough, the seller holding it at the end may have little idea that anything is wrong.
That doesn't remove their responsibility to the buyer, but it does explain why counterfeit enforcement in the resale market is considerably more difficult than removing somebody openly advertising fake Gucci bags.
The platforms are tightening their rules
Whatnot prohibits counterfeit products from being sold or given away and places responsibility for authenticity on the seller. Sellers can be required to produce evidence that their products are genuine, and Whatnot recommends retaining invoices and other documentation relating to stock.
The platform has additional requirements around parts of its luxury category, including seller approval and authentication requirements for certain products. Buyers can also raise counterfeit claims, with Whatnot able to request evidence from both sides while investigating.
TikTok Shop UK similarly prohibits counterfeit and knock-off goods. Its enforcement can include removing products and applying restrictions or violation points to seller accounts.
TikTok also operates Brand Authorisation requirements for certain brands, where sellers may have to demonstrate ownership of the relevant intellectual-property rights or authorisation to sell the products. Its approach to second-hand fashion in the UK is relatively controlled too, with access currently restricted to sellers accepted through its onboarding process.
Depop prohibits counterfeit products, replicas and unauthorised copies, with counterfeit goods also covered under its buyer-protection arrangements where eligibility requirements are met.
The policies differ, but the direction of travel is similar. As resale platforms become larger and branded second-hand goods become more valuable, authentication is becoming part of the infrastructure of the marketplace rather than something left entirely between buyer and seller.
The difficulty is that authentication itself is not absolute, as the Vinted case demonstrates.
Price is becoming a less useful warning sign
There was a time when buying a fake designer product often meant knowingly buying something suspiciously cheap. That distinction is becoming much less useful.
The BBC previously reported warnings that criminals were offering counterfeit designer clothes, handbags and shoes through online marketplaces at prices designed to suggest that the products were genuine.
That matters because the price itself can become part of the deception. A supposed £1,500 handbag offered for £50 looks suspicious. The same handbag offered second-hand for £400 sits comfortably within the sort of discount consumers expect from resale.
Citizens Advice figures cited by the BBC showed complaints about counterfeit goods sold online increased by 30% in 2025 compared with the previous year.
The issue therefore isn't confined to luxury handbags. Any resale category where there is a meaningful gap between the manufacturing cost of a counterfeit and the resale value of the genuine product creates an incentive for fakes to enter the market.
For live sellers, branded trainers, streetwear, fragrances, cosmetics and fashion can all carry some degree of authenticity risk depending on how the stock has been sourced.
Provenance is becoming more important for resellers
There is a distinction between checking a supplier is a real business and understanding where that supplier's stock actually comes from.
A company can exist, have a warehouse, operate a website and have plenty of customers without every product passing directly from an authorised distributor into its hands. The secondary wholesale market is rarely that straightforward.
This becomes particularly relevant with branded job lots, liquidation and customer returns. The further stock travels from the original manufacturer or authorised distribution network, the harder its history can become to establish.
Invoices help, but an invoice from the company that sold stock to you establishes who you bought it from; it does not necessarily establish the complete origin of every individual item inside a mixed consignment.
For sellers dealing regularly in higher-risk branded categories, sourcing is therefore becoming part of risk management rather than simply a question of finding the lowest unit price.
Established suppliers should be able to answer reasonable questions about where stock originates, what documentation accompanies it and what happens if an item later raises an authenticity dispute. Sellers dealing in high-value goods may decide that independent authentication is justified even where they have confidence in their source.
There is a commercial reason for this beyond avoiding platform enforcement.
Live selling depends heavily on repeat buyers. A seller can build an audience that becomes comfortable purchasing quickly because previous transactions have given them confidence in the person on screen. That relationship is particularly valuable in an environment where buyers cannot inspect products physically and auctions can be over within seconds.
Counterfeit goods threaten that confidence even when the seller had no intention of deceiving anyone.
The uncomfortable lesson from the BBC's Vinted case is that the buyer did many of the things normally associated with being cautious. She bought through an established marketplace, paid a plausible second-hand price and paid extra for authentication.
The product still became the subject of an authenticity dispute.
As live commerce grows in the UK, marketplaces will undoubtedly continue investing in verification and enforcement. But for sellers operating further down the supply chain, the more immediate question is increasingly going to be where their stock came from before it reached them.
For legitimate resellers, being able to answer that question may become just as important as being able to sell it.