AFAIK there is only one code:
Quote:Visit http://preorder.na.finalfantasyxiv.com and register. You will be notified via email prior to the launch of the game on when you can return and redeem your preorder code (code listed above) to unlock Early Access to the game along with instructions on how to receive your Cait Sith Doll minion and Moogle Cap digital content.You generally don't have to enter anything else after you have Early Access, but Squeenix COULD be doing it differently. I doubt it, however.
