Poor customer service

Good day i opened my standard bank savings account in East gate branch when I lost my job i went to standard bank Tembisa plaza asking them to close the account due to the fact that I knew I wouldn't't get a salary so I didn't't want to incur bank charges only to find out three years later that the account is active and has accumulated interest, i then went to Standard bank Newtown Junction to report the matter and was promised feedback after the matter is dealt with but to my surprise the account is still active and continuing accumulating interest. I just settled my standard bank credit card to prove that I'm not failing to honour my debts but this is not my fault and I refuse to pay it as i did inform standard bank in time i would like this matter to be sorted out as it has affected my credit report