Charging for a Credit Card account that is discont

Hi,<br> <br> I was advised a few years back that the credit card account I have is no longer available so it was agreed instead of changing plan types I would pay the account and close it. As the Card expired years ago it was destroyed and now when I want to cancel the account due to being charged monthly for an account I cannot use by firstly going into the branch I was told that they cannot help me and I need to phone the credit card number but when I phone the credit card number to speak to a consultant after 3 requests for my card details failing my call gets disconnected and in the mean time I'm being charged R25 per month every month for over a year for a card that is not in existence and a card plan Standard Bank discontinued.