You won't see a code until the order is confirmed (when you would originally receive the e-mail). If you can't see the e-mails, you won't know when the code will show up there.
No worries, people have had delays. Chances are, you'll get it. Other chances, you'll get upgraded to 1600 for the wait. If all else fails, you can call in for a refund if nothing is done in a few days. Just give it time.
Edit: As soon as I typed that I got another 5 codes I ordered 2.5-3 hours ago. How long was it that you ordered?