I had to rehash this thread. This just happen recently. I purchased a Zotac GTX770 amp edition. I got the card went ahead got it all hooked up. Went online to register the serial code for warranty. No serial code was not on file with manufacturer. Emailed support they said same thing. Also the Splinter Cell coupon was invalid. They wouldn't honor that either. This was coupon offered by Zotac. Keep in mind this card and coupon was sealed in the box never used. I went ahead contacted Newegg they gave me a RMA ( full refund ). I wasn't about to keep a video card that wasn't covered under warranty. I went ahead and purchased the MSI GTX 770 gaming edition. The cooling difference was HUGE! 15C difference at load!! Ran into no problems registering the serial code. The whole thing with Zotac was just bizarre..