African Bank's Incompetence Conduct

I have a loan and credit card accounts with African Bank. I sent them a request to change banking details for a debit order and the necessary documents. For 4 months they did not change the details and only did so when I lodged a complaint with the Banking Ombudsman (who ruled in their favor). They committed ***** by increasing my installments and debited my account without permission, but the Ombudsman still ruled in their favor. I agreed to the Ombudsman's resolution but they still haven't made the changes as per the resolution but keep trying to debit my account. 4 months to change bank details for a debit order, 2 months to rectify their conduct but still not done. In my opinion they are the most useless bank to operate in South Africa and I regret having asked for their financial assistance.