Failing to close account

Having moved abroad, my account was frozen without notice. When I returned to South Africa in June, I went through the process of having it unblocked and paid up the balance to request the credit card account to be closed. The consultant assured me the account would be closed. The following months til present I am still receiving statements of bank charges even though I asked for the account to be closed. I communicated with the same consultant who requested for the charges to be reversed and the account to be closed once again. It has been 3 months of charges accumulating and promises from card division that the account will be closed yet every month the statements keep coming. Obviously the account has not been closed and I am still being charged even after submitting requests and documentation.