Why do people keep saying "No Email", what you should be doing is trying to log into the game with the "Play" button. If it is greyed out you have no access, if you can get in, it's ok.
The Email you will receive will come after they unlock your account. So you will be able to hit the play button before you recieve the email itself once you are unlocked.
P.S. Rather then say, I have no email yet.....it would be better try and log in and say you still have "No Access" with your date you entered your Pre-Order Code ( Not the day you actually placed the order )