I'd start forwarding each and every one of those emails he's sending you to ebay, and I'd find a phone number for ebay, because I *know* I"ve called them once about a dispute. Live help is no help, buncha dunces, but you can try it. I really think you need to start slamming Ebay like this guy is slamming you. I didn't get any help until I really started basically harassing ebay and it was easier for them to help me than to ignore me. If you can find an actual email address for an actual person who works at ebay, and then start forwarding those emails, that could help. Heck, forward them to the chick that runs ebay!