Help: Error when trying to play PSN downloaded version

[NJA]

Same. And if you try to launch the PS3 client, you go through the initial stage, and up to the part where you were asked if you have Square Enix Account - where it used to have 2 buttons - now only showing "I currently possessed a Square Enix Account." option. Continue with that, you would not be able to change the Square Enix ID - greyed out, so it seems like the SEN-SQEX account tie-in is a success - however after the login, you'll get "No valid service account" error...

Exactly the same. The Mog Station / Support Desk info simply says that the game should work without the need to enter any code (none being supplied). The game does not appear in your SE profile (mycosynth's link) and you can't register it as no product code.

I'm stumped as to what to suggest next.