Unpaid debit order and reversal of fees

I have an Absa account and i advised them to run a vaf debit order on the last day of everymonth . To my surprise the debit order went through today which is the 3oth and causing my account to have an unpaid debit order. <br> <br> I need them to remove those unpaid debit orders on my account as they have a negative impact on the conduct of the account . I also need them to reverse the unpaid fee and change the date if it was never changed