I've never sold through them, but have had the same troublesome experience recently with a purchase. I bought an early 2001 Balenciaga First, which was beyond a doubt, authentic. They tagged it as counterfeit and sent me a note that my money had been refunded. I asked for re-consideration, sent them photos of authentic features in an effort to educate them... nothing but nothing swayed them.. They just said, sorry, it's already been returned to the seller. Nor was there any way I could contact the seller, they'd wiped out all the connections through their site. Very frustrating experience. I imagine even more so for the seller.