CREDIT BALANCE - NOT UPDATED CORRECTLY

I've contacted the Debt Review department today in regards with my balances that is not been updated on their side. I've spoken to a TREVOR at the department, I've raised my concerns and had questions on when the issue on the IT Department will be resolved on my account, but as I speak, he repeatedly interrupted me the whole time. After a while he dropped the call, without answering my questions. This is truly bad service I'm receiving from this department. From the starting point, last year November 2022 my balances is not updated correctly, but the whole time I'm receiving the same feedback. Very disappointed in African Bank as they just want your money, but does not want resolve the issue.