I sold a Fendi spy couple of weeks ago to a buyer in Australia. She told me to hold this bag for her for two weeks before she makes the payment. Anyway, the bag I sold is authentic from Saks 5th, and it is also verified in this forum. Now after the buyer received the bag, she said someone from the Fendi store told her the bag is fake and demanding money back. What should I do? I am very sure the bag is authentic, and I had all the pictures taken before I sent out the bag. Should I accept the return? I am afraid the bag she's going to send back to me might not be the same bag I sent to her. What kind of protection do I as a seller have from paypal and eBay? Thanks for any advice.