American Friend
Retro Guru
Same thing once happened to me, seller refused to sell, presumably because he thought the winning bid was too low. Very annoying, but no big deal. It's just a 1980s Colnago frame. There are tons of them around. There's certainly nothing even remotely illegal about a seller changing his mind, but I agree eBay shouldn't let them off the hook so easily. Also, in this particular case I'd be just a bit wary because the frame has been resprayed.