my code worked in ps3 store do i need to register my other code at all?
Did you download the client software? Not sure where you are in the process, but:
Once you succesfully log into the game on your ps3 - accepting terms, you will come across the rquest for the 20 digit code.
(You need your square enix account name and pw in order to log in. If you don't have a SE account, you'll need to make one.)
If you have problems, let us know what step you are on. Cheers!
Name: Ghost Orchid - LEVEL 50 Bard, BLM, WHM, SMN Craft Level 7 Lucis, 6 4-star crafts: CUL, MIN, Wvr, Bsm, Gsm, Arm, Lth, Crp (Fishing and Alc at level 50)