I feel your pain, I too am in a similar situation.
My wife and I pre-ordered the game when we heard that our local game retailer was taking them, that was back in Feb. of this year.
Then, in July, when BW announced offically that they were taking pre-orders, the wife and I went back to our local game retailer to get our codes. At that time EGA wasnt really announced, just the color stone.
Long story short, misplaced reciept, found reciept, code is missing, contact BOTH game retailer corporate hq, and BW.
Didnt get my code until the end of Nov.