#5 - Sept. 1, 2010, 4:45 a.m.
It does not appear that you have a payment pending, Tritone, so let's see if I can direct you to the proper link. =)
Canceling Your World of Warcraft Subscription: 1) Log in to your Account Management page:
http://us.battle.net/ 2) Select the Game you wish to manage by clicking its box art, then 'Manage Game'
3) This should have brought up your Battle.net account overview. Click on the title you wish to manage a second time.
4) On the right side, there should be a link for canceling your subscription, so long as your account status is set as 'Active' and not 'Pending'
Let me know if you are still unable to find it.