Guild Wars 2

I had to delete my card information and re-enter it. They said they fixed it for me, but when I went back in I still couldnt purchase gems. After deleting and re-entering it I could. I suggest not saving your card information anyway as a precautionary measure.

I had to delete my card info and resubmit for it to take. I suggest that you do not leave the card information saved. Just as a precautionary measure.