I don't know if anybody has experienced this kind of BS that just happened to me, but I would really appreciate if somebody actually knows if there is a solution to this:
Basically, today I received my Persona Dancing All Star Triple Pack, and I proceded to check if the code worked (the seller said it had not been used). So, I went to my Japanese account, inserted the code, and I thought I had hit the jackpot. It was weird, though: I could see the typical rectangle with the game written in Japanese inside, but the square next to it had no image of the game. I did not care about it, and then clicked on "Continue". After that, I got a message that said something like "The content could not be found right now, check later". Yep, this is when it went downhill xDD. After that, I tried to enter the code again, but the typical message saying "Sorry, this code has been already used" appeared on my screen. I checked my game library. Nothing. I restored licenses. Nothing. And every time I reentered the code, the same error appears. I think my luck run out, right?