HI. I really don't know what to do. I sold a Balenciaga bag on eBay and this buyer claims that it is not authentic. She said something about zipper pull, zipper, serial number. I guess she doesn't know that every year they have different letters on the silver plate. I don't know what is wrong. I know that it is authentic because I have seen this bag in the store at NM. I also own a few Balenciaga bags. Also, I bought it from an eBay member with 100% feedback and a Power Seller. The seller is also a member here. The buyer wants a Full Refund including Shipping. I usually don't ship to Asia, but I made an exception for her. Do you think that this is a scam and that she will never send the bag back. Actually, I don't want to accept a return because it is Authentic. Please help me. Thanks.