Debiting my bank account after settling loans

I contacted the call center on the 23rd of March 2016, requesting settlement amounts of my accounts, i was given a discount to settle my accounts, i agreed with the terms and settled my account on the 24th of March 2016 via debit order. On the 25th my account was re-debited with normal installments, I contacted the call center and they confirmed they will reverse the money, however 10 minutes later i received an sms stating that they cannot reimburse me the money, i contacted the contact center and told them i am going to log a dispute through my bank to reverse the money.<br> <br> on the 31st of March 2016 my account was debited again with normal installments, i contacted the African Bank Call Center again and i was told the same story.<br> <br> I don't know what to do anymore, maybe i should just write to \\"speakout\", maybe i will get my paid up letters and my bank account will not be debited anymore, this is so inconveniencing and so irresponsible of the bank, i am trying to clear my name and the bank is actually setting me back.<br> <br> I want my paid up letters and don't debit my bank account anymore, i don't think i will refer anyone to your bank."