I'm experiencing the same issue. 4 charges for $1.15 CAD, all payments are failing with error code 406 and 401.

Support database has no information on what seems to be a recurring problem. Verified no issues with my credit card, account information is up to date but now my xiv account is "inactive".

People have said in the past a workaround was to buy crysta with paypal but that option appears to have been removed. I'm still waiting for a response from my support ticket but it being an email ticket makes me worried at how long it's going to take.

Is it a mogstation bug all around or does the payment processor have issues with random cards?