UNABLE TO CHANGE DEBIT ORDER DATE

I am really fed up with ABSA. I started at a new firm at the end of February 2020 and notified ABSA on the 27th February that I would like to change my debit order from the 27th of every month to the 1st of every month as I will only receive my salary on the last day of every instead of the 25th. I have sent numerous emails since February. Up to date, my debit order date for all my ABSA related debit orders have not been changed as requested and I am paying penalties for each failed debit order. And every time I send an email I receive an automated response to say my case has been closed. How can the case be closed if nothing has been attended to? This is pathetic. It seems like I will have to move my accounts to another financial institution.