Can't Buy Crysta

[Zareth]

You choose the amount of Crysta you want to buy/claim and then it gives you error 11000 before even giving you payment options. I have an Ultimate Game Card, but it's totally useless when Square Enix doesn't let people claim them.

I think they mean that instead of buying Crysta, pay directly with a CC. Not sure how risky that is and all that but my CC has a $500 limit and I monitor it fairly religiously and act right away if someone uses it without my permission. So maybe you can get a CC with a small limit and use that to pay directly instead?