Personally, I wouldn't spend anymore of my
money to ship it back. There was another thread on here where a seller said something similar to that (just being an employee). Personally, I think it's a cop out and the guy just wants the negative feedback withdrawn so he can continue ripping people off.
There are good mp3 sellers on eBay, but as everyone on this board has found out the hard way, you have to look for them. Don't just check their feedback, look for a change of IDs as well.
The petition, if you haven't already signed it, is a good collection of sellers to avoid.