Quote Originally Posted by Xemnarth View Post
in my case it's crysta, but my question is will the system use the registered credit card to auto top up the required amount to renew the monthly sub and retainer service? (I didn't directly use the credit card to add crysta originally)
Nope if you go over crysta the system will try to bill you in crysta if that isn't possible cause you don't have enough crysta the system will cancel your sub. So you would need to resub with a different billing method as far as i know.