Help!!! I sold an AUTHENTIC fendi bag on eBay and the buyer sent me an email saying that the bag was fake. she said she had it "looked at" but won't say who or where it was looked at. She wants her money refunded BEFORE she returns it! She wrote me this email a week ago and I did not get it as it ended up in my junk mail folder. She did not use eBay message center until after she left me a neg FB so I had no warning whatsoever! So now I have a mark on my record and she is threatening to report me to the "authorities" (vague) unless I pay her refund prior to getting my item back. I feel like I am being blackmailed! Help!