African Bank Going Against Payment Arrangements and Debiting Excessive Amounts

I am extremely disappointed with African Bank. I have two accounts with them and I made formal monthly payment arrangements to pay R500 on each account. Despite this agreement, which was discussed and supposedly recorded during phone calls, African Bank continues to debit my account with large amounts over R6,000 which we never agreed upon. This is completely unprofessional and dishonest. I have tried to do the right thing by communicating, making arrangements, and paying my creditors on time. But African Bank is acting in bad faith and undermining my efforts by debiting money that is not part of our agreement. I want to make it clear: Stop debiting my account. I will transfer the agreed-upon R500 per account monthly nothing more, nothing less as per our arrangement. What you are doing is damaging my credit profile and showing complete disregard for your clients. This is ********* behaviour and if it continues, I will escalate the matter to the National Credit Regulator and Ombudsman for Banking Services. I expect a written response and immediate action.