I meesed up, help plz

So , i got my disc yesterday and went to play the game.... my playstation has two users on it. Well i accidentally put in the code on my girlfriends user screen. i went to log in and play and it said, cannot play account already linked to sony account ( i linked to my username during open beta) so then i went on my user screen and it said wrong service or something.... so i cant play on either one..... has anyone else had this problem and how do i fix it???

I dont understand what a Registered Service Account is... i only have one square enix account... so i dont know if this form https://support.na.square-enix.com/c...82&la=1&daxx=2 will fix my problem. When i went to my account setting i could not find anythiung about service one or two or anything....

Plz help lol im so frustrated, i was barely able to play open beta because of restrictions and now this:(

ty ,
Nivek

Bump Does anyone know if the service account problem is the same problem im having?? cause i only have one SE account... i thinking about trying to exchange at gamestop for new game....