okay, so i pre-ordered black ops 2 last month, and i got the promo code for it. i entered it on the site you need to enter it on ( [ Register or Signin to view external links. ] ) and when i went back to get the new map for pre-ordering, it says i need to re enter the promo code, but i cant find the receipt.... somebody please tell me what i can do, or if there is an alternative.