I bought mine from Best Buy canada and I went line by line through the preorder and the purchas receipt. I even made sure there wasn't another code hidden in the manuals somewhere. To make a long story short, the store had no clue what I was referring to,
so I contacted the corporate customer support, who in turn passed me back down to the local store.
Luckily the manager seems like a decent guy. He did some digging and found out that the supplier accidentally did not send out any of the preorder code cards. They are getting their cards in soon, but as I was apparently the first at this store to bring
it up, he emailed me my code directly. He suggested that I pass on the information to anyone else in my situation that if you didnt' get your genki card (From Best Buy Canada), take your preorder and purchase receipts into the store and they can either give
you the card, or take your name and number and call you when the cards come in.