Poor customer service experience at ABSA

I am an ABSA Private One client for 24 years. My recent experience with the bank leaves much to be desired. I just settled my Private One account which is linked to my mortgage bond and 30 days later the account is still not settled my money is sitting in some ABSA corporate account while I am expected to pay interest on my negative balance on my account. It is almost a week since I have reported the matter to the relevant authorities and it seems no one knows what do. This in action by ABSA is a clear violation of the Consumer Credit Act, no bank policy can operate outside the laws of the country.