#4 - April 17, 2010, 5:18 p.m.
If you cancel the World of Warcraft account (
https://www.worldofwarcraft.com/account/cancel-account.html) to remove the active subscription the credit card will no longer be charged for the monthly subscription, but the remaining game time will be unaffected and a different payment method can be selected to extend the subscription.
If a purchase has been made on the Blizzard Store, you may need to visit
http://us.battle.net and click the "My Payment Options" button in the
My Payment, Contact & Shipping Information section of the page. If the credit card information is saved there, please select "delete" to remove it.
Our paid services (faction changes, race changes, character transfers, etc.) require users to enter the credit card number each use; this information is not saved other than for record keeping.