Unathourised Debit Order

African Bank debited my account on the 14th December for the loan and the credit card that I have with them, I called on the 14th December and I spoke to Deliwe and I explained to her that African Bank had no right to debit my account on this date as this was not in the contract signed with them, I explained to her that I work for an international company and we get pay on the same salary date as any other month. She confirmed that she will log a call to accounts to change the date and remove the tracking in my account, she told me that I will get an sms with the reference number. On the 15 December I still hadn't received this sms and I called again and I spoke to Neo who was also rude to me and treated me like a retard, I asked to speak to the supervisor and then a guy called Tshepo who confirmed to be the supervisor answered the phone and I explained to him my story and also he was not helpful, they indicated that I must send my banks statement which shows the unpaid charges, this will be refunded by African Bank. He also said that he will speak to accounts to remove tracking from my account and I will receive an sms today and again I still haven't receive any sms's. African Bank is in breach of contract, and the way they treated me its like I am nothing and they dont care about their customers. I want this sorted asap.