no transparency, feedback- no customer service

I am blue in the face with complaints and still no word from African Bank. My contract was for 24 months where I gave permission to debit my account. they failed to take the last debit and when I had queries about this failed to be consistent in their answers. their complaints department is useless with no feedback and their legal team is no different. they said I would be debited the following month and nothing happened and no feedback. and now they send an sms about a reversed payment which is not in our agreement. LOL im so frustrated I can only but laugh. my agreement was for the funds to be taken within the 24months with no defaults on my end. they skip two months and decide to debit me on the 15th of December which isn't in our agreement. Yes I have reversed that debit as I did not agree to it. They have my email address my contact number but no one in that company knows their head from their ****. the story keeps changing and Im not calling in 2016 to go through last years nightmare. I have stopped your debit orders. If you want your money I suggest you start by treating your customer fairly and I will pay you myself as this is outside our agreement. the fault being yours!