Debiting on wrong date

I have stopped counting the number of occasions which African Bank deducts their debit order earlier than agreed. I have an SMS from them confirming the date of the debit order, the 29th, but they deducted today, which is the 26th. When phoning them, the manager gets aggressive and rude and says he must first go listen to the taped conversation, but the money will most probably not be reversed. <br> <br> Today I have cancelled all future debit orders of African Bank, as it is clear that they are unable to run a professional billing system. From the number of similar complaints received on this site, it is clear that they have no regard for the rights of clients as well as the stipulations of agreed contracts.