Are early access codes tied to the account once redeemed?

[Calastir]

The only purpose of the 18 digit codes is to add your game to their stupid social site and grant you a 20 digit early access code. The only code of import is the 20 digit code (or whatever code PS3 people get) and that is the one you have to redeem for early access. The 20 digit code gets tied to your SE account on use.

[Xellan]

Thank you very much, Calastir. ^^