I downloaded the trial version in my PSN account, and then I bought the game with my younger brother´s PSN account (same PS4), because he has PS Plus (which I paid for, because in my account for some reason I can´t use Paypal).

My younger brother can play FF14 in his account, but in my account in the same PS4, I can only play in the trial version. How can I fix this issue? Please help..