I found out that if you don't ask them to put the backup code on your receipt they can miss it and not give it to you. Go back to the store where you bought it and ask them to add a backup code. The salesman will need to look around for the sheet telling them to do it and not every store is so on the ball. I found that out in my city where we have 3 and only one knew about the code. The first run of codes ran out and they are going off the backup code right now. Keep at it and I'm sure you will succeed.