Open a "Significantly Not as Described" complaint with both eBay and PayPal (if you used PayPal).
http://pages.ebay.com/help/tp/inr-snad-process.html
http://pages.ebay.com/help/tp/paypal-protection.html
https://www.paypal.com/cgi-bin/websc...ide#pbp-policy
If you don't get satisfaction from that at the end of the investigation, then file a dispute with your credit card company (you did pay by credit card, right?).