I don't have a visa only maestro, to get visa id need to go into my bank and as to change my account to a different type which comes with a visa card
Cataclysm broke WoW, but resilience will fix it!
It;s the same as every other mmo. you buy the game, set up your account / subscription, input your credit card information....only AFTER entering your credit card info and your account is active will you get your free 30 days. after you enter your CC info and your account is active can you then cancel the account to not get billed if you do not want to. You'll stil get your 30 days.