Buyer says shoes they bought from me are fake
Recently I sold a pair of shoes on Vinted, I got them about two years ago and only wore them once during that time so I decided to sell them
I got the shoes through a reward scheme a reputable skate shop was doing where you get points with purchases which you can redeem them for for things like discounts and special offers, or in this case a free pair of shoes
About two weeks after I sold the shoes I received a message from the buyer saying that they have inspected the shoes and they’re fake (which they’re not) and that they would like a full refund. They’ve claimed they’re fake because of certain manufacturing details of the shoes which I have no clue about but apparently the buyer is an expert. They have bar codes and serial numbers that you can verify the authenticity with so claiming they’re fake is a misleading claim.
My suspicion is that they have received the shoes, worn them (to a party or something) and now would like to send them back claiming they’re fake
I’m concerned about what this will do to my Vinted account as I know selling fake goods is prohibited
What can I do about this situation?