This is why you pay with your CC through PayPal, that way if PayPal won't help you you go to your CCC and push for a charge back. Mail the crap back with tracking number, and your golden..
Let Paypal deal with charging back the crappy seller, and they will do it...
Of course it helps if you have a good history with your CCC..
KooKs LT Headers, Borla S-Type cat back, RotoFab CAI, Bo White PTB, RMCR tune...