Ok, I'm having this same problem. Got the game a month ago, trial ended and tried to sub.
Trying to go through all 103 pages would be a pain, so I would appreciate if someone could clarify this for me...

I tried REPEATEDLY (for the past 2 days) to sub with my credit card, buy crysta with paypal and whatnot. At this point my account should be locked from using that credit card for 30 days? or the whole account is locked from any type of payment?
I never saw the 24h wait message until I read it in the Support Center. :/