Just bought the crysis 3 + bioshock codes too.
Very polite seller, good and fast service. And of course, most importantly: valid codes! 

For me the same story as the previous post. Redeemed voucher at amd site, received email with game keys. Redeemed the crysis 3 (hunter edition) code on origin and this is now preloading.
http://i.imgur.com/hGOge5P.png

Thanks again risim!