I'm sorry for abusing this section again, but.....

I was checking in the mog station, my account management (Idea came in another post where I wondered if I could link ps3 and so.) and I have remaining 12 days and so.

My question here is....How do I pay for more suscription months?

I'm seeing that it has to be with doing a crysta thing account... Is it really necessary? Because I didn't need crysta for buying the game and download it, only debit card and go.

Forgive my laziness, maybe there are already opened threads about it but I hadn't the will and time for checking it.