Failure of removing a paid up debt

I had a standard bank credit card. The card went on defaults and was transferred to debt collectors. In November 2014 I paid up the account and requested it to be closed. I got telephonic confirmation that the account is closed. In 2015 march the account reflected as still owing from trans union credit report. I called bank and provided proof of payments and requested that account get closed and debt return off. In June 2015 the account still showed owing and in errors. I than requested paid up letter this time I around and i was told the error has been account is no longer owing. In September 2015 I received a bank statement still showing that the account is owing. I called bank and still same response. I than went to Lephalale branch requested branch manager, I told her story and within 3 days I got paid up letter but still to date the account is still not closed and stills reflect owing. The reference number for last complain is *** please assist.