absa lacks customer support

The call center agents are clueless and gives wrong advice. I made a car payment from FNB into Absa in April. apparently the money went to their absa suspense account. Absa phoned me in may regarding a missed payments, I made them aware that the account was paid and i sent them proof of payment. I was promised that the money was going to be allocated to the car account. I was getting calls everyday regarding the missed payment, I have sent almost all collection agents the proof of payment but nothing was done. only until August the money was allocated to my account. . Absa has listed me in credit Bureau for skipped payment while the payment was sitting in their suspense account all along. I'm trying to apply for a Personal Loan at FNB and it cannot be approved because of the listing. I want to refinance the car with another bank. absa is fast to list clients, the same energy should be used to fix their internal processes.