NS-11A Platinum (needs unlocking)

My NS-11A Platinum has only ever unlocked for use on the one character that I entered my code initially with originally. I would like to use it with all of my medics. Do I need to create an in-game ticket for this?

Thank you for the summer reward.

No, it's only a single-character unlock, but you can use the code an unlimited number of times, so just redeem the code enough times for every character.

Hello I have a question What s that code? I ve known about it can you tell me that code? Im new :\

"SummerReward"
or if that doesn't work, try it in all lowercase instead.

Thanks so much

Another thread about the code: https://forums.station.sony.com/ps2/index.php?threads/ns-11p-and-other-codes.191571/