Triangulation scams: the marketplace seller who never touches the goods

Three corners, one stolen card

The scheme survives because each corner looks clean in isolation. The marketplace sees a seller who ships on time and gets decent reviews, because the goods are real. The retailer sees a normal order paid with a card that authorises. The buyer sees the product they wanted, sometimes at a price slightly under the real store, which reads as a deal rather than a warning.

The stolen card is the only dirty part, and it is pointed at the retailer, not the marketplace. When the cardholder notices and files a dispute, the retailer loses the goods and the money. The marketplace seller, paid out long before, keeps the spread between the listing price and what the stolen card bought. Chargebacks land on the party least able to spot the scheme.

The listing tells on itself, if you read the details

Triangulation listings copy images and descriptions word for word, including the retailer's own sizing charts and care text, because the seller has no product to photograph. Stock claims are the bigger tell. A seller offering a full size run and every colour of an item the real store shows as low stock is not holding inventory. They are holding a checkout page.

Shipping promises give it away too. The seller quotes the retailer's delivery window plus a buffer, and tracking, when it comes, originates from the retailer's carrier account and a fulfilment centre the seller could not name. A buyer who asks where the item ships from gets a vague answer, because the honest one is a warehouse belonging to somebody else.

Where retailers can cut the retail corner

Watch for orders where the billing pattern and the delivery pattern split: cards tested with small orders first, then a jump to high value goods shipped to addresses that never match the cardholder's. Gift messages and marketplace order references left in delivery notes are near confessions. Sellers sometimes paste the marketplace order number into the retailer's checkout so they can reconcile their own books.

Velocity rules aimed at the delivery address help more than rules aimed at the card. The same buyer address receiving goods paid for with several unrelated cards, across weeks, is the triangulation pattern repeating. One order is a gift. Five orders on five cards is a business model running through your store.

Marketplaces hold the seller's payout, which makes them the one party who can still act after the chargeback lands. Holds on new sellers in high risk categories, payout delays that outlast the first dispute window, and fast evidence sharing with retailers turn a profitable scheme into a stuck balance. A seller whose funds freeze at the first retailer dispute stops opening replacement accounts so casually.

What marketplaces owe the other two corners

Buyers can protect themselves with one habit: order the same item from the listing and then check whether the parcel, invoice, and returns route name the marketplace seller or a different store entirely. A parcel from a retailer you never ordered from, with no paperwork in your name, is triangulation until proven otherwise, and the returns desk of that retailer cannot help you because in their system you were never the customer.

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