Originally Posted by
Hagito
If you can't add crysta using credit card, simply, use ultimate pay as payment option when adding crysta to your account, that option has other several options to pay, PayPal/Moneybookers/Western Union, and others.
Once you complete your payment/deposit to ultimate pay, they will then transfer the funds to Square Enix, and will reflect the crysta in your account.
Using that method I was able to get crysta using my online bank account fund transfer, took a day to clear the payment and reflect the crysta in my account but well, there're other options you can use for sure.