You should check sticky threads mate:
http://forum.square-enix.com/ffxiv/f...#threads/93493

A lot of people having issues with paying for game time. Though, you're still on free time, and apparently you can't do anything about payment until your time runs out. Hopefully you won't have troubles when it does.

Tips: If you're setting up a credit card payment, make sure credit card options (name, adress and country) are matching your accounts settings. If they're not, you will just end up in a loop and never get help (except from other players, and we can't help you with your credit card or account locks).