Hi eBay community, 

Basically, I started to sell some items on eBay from this year. And I have encountered my first return request from a buyer today, but it is kind of strange. I have listed an Air Jordan 1 Sneaker in brand new condition. And a buyer bought it, and before I send it, I have provided everything to the buyer including proof of purchase, order confirmations, bank transactions, and details of the shoes in differnt views. Buyer has received shoes on Friday, and today the buyer just request the refund to say the shoe is not authentic without any supoortted information. Just the word to say not authentic. But I could be ensure that my shoes are 100% authentic which are purchased from an authentic Nike retalier sneaker store. And I asked buyer for more information, the buyer also did not reply me anything. And I could accept return if its for other reasons such as damaged, worned, etc. since it would be my fault. But not for this unauthentic reason without any supporting evidence.  But I just worry about that the buyer would maybe send back the fake pair for the return. I belive this situation usually happend in the sneaker market for some scammer. What should I do for this scenario?

Thx a lot for your guys!and sorry for the inconvenience.