Delete the credit card info

[CNHungryPanda]

I need to delete the information for the credit card in the 'Billing' section. I cancel my subscription, and I tried to do this but it appears to change the payment only without deleting the existing information for the credit card. 

[fdsag45dh]

I've tried to do the same with no success. even though net 30 is mentioned as a payment method, once they have your credit card, they will not (apparantly) let you remove it. I would suggest getting a new credit card, then the old one will stop working. Of course this is painfull too since you have to manage everywhere else you have that card in use.