Negative profile reflected in credit Bureau because on FNB incorrecy information

First National Bank Debt Review Centre gives the worst service ever. They take two months to do a bank reconcilation. I am paying my account every month through salary deduction and they reflecting my account with missed payments. They needs to remove this bad reflection from the credit bureau as it is their mistake my profile is reflecting negatively. I spoke to Volgen from the debt review department but all he does is tell me they working on it. I need my credit record to be cleared urgently as i am not missing any payments.