They will be sending out the codes/ Packages of the game between Aug 27th and Aug 30th. The preorder access code is NOT the same as the game code. You won't get any bonuses until they send out the game codes and it is officially launched. Early access is from the 24th of Aug to the 30th of August to allow for the delivery of the game to people.

http://forum.square-enix.com/ffxiv/t...28#post1030928