There doesn't need to be a big manual to buy the game. Something as simple as a notification before purchasing the game such as: "Please ensure you are purchasing this game with the PSN ID that is linked to your Square Enix account. It will only work on that account". This one line may avoid a lot of trouble afterwards. Yes, some people may blow right past it, but it may actually help.

Anyway, I wrote this when I was pretty upset and frustrated, so yes, I can understand that Square cs must put up with a lot of terrible stuff. I appreciate the feedback.