To ensure I have everything set up and ready for FFXIV I've updated my SE account and registered a card through the "ClickandBuy" service from SE. Well when looking at their buying options for Crysta it notes that to use CaB (I'm gonna refer to ClickandBuy by this for now on, makes it easier.) you have to have a verified account with CaB. It can take several days to verify the account (Done by billing your card certain amounts and waiting for it to show up on your bank statement.) and when confirmed the amount charged between $1.00 and $1.99, which will be charged twice, is then credited to your CaB account. I'm wondering if this will be done with only Crysta or both Crysta and when registering your card with SE. If so then we may be required to verify our accounts regardless which you use.
Personally I won't be using Crysta to pay for FFXIV but if it does require you to verify your account before the transaction takes place then it may cause some issues for release day. Just a heads up, people paying with Crysta via CaB will be definitely affected by this I can tell right now.