#3 - July 1, 2010, 6:14 a.m.
Q u o t e:
Make sure that the payment has finalized and is not still in the pending status and then merely cancel your subscription. When you need to later, you can just add a gamecard if that is your choice of payments.
***Quoted for Turtle***
As long as the billing cycle has been successfully gone through, Cowmann, you should be free to cancel the subscription on that account: (
https://www.worldofwarcraft.com/account/cancel-account.html).
Please not that you will still be able to access the account and characters for the duration of your pre-paid time. Once that time runs out, though, you will be unable to access the account until you apply another payment method to the account. :0)