i was asked last night how can one avoid repeat billing, and can they finish the time they paid for. so here is some info on that.
1. you are NOT obligated to wait for the 29th day to cancel. in fact at that point depending on the billing cycle you may be too late and on the hook for a second month.
2. if you only want to pay for 30 days you can cancel immediately or within a few hours after paying for the month.
3. once you get the paid confirmation email you can follow the links to the billing company, should be CCBILL, and cancel.
4. you need to fill in some info such as email you used, c/c used, and order number. make sure you keep a copy of the cancellation confirmation for your records.
5. you will NOT lose the remainder of the time you paid for.
6. also make sure you do not have any other automatic payments related to the site such as in game currency purchases.

once the 30 days are over you simply go back to basic member and lose many privileges you had as vip.
hope this clears the air and makes it clear on how ccbill and the billing in here works.