change of debit order date frustration

I have called a month in advance to notify the group scheme of my change of employment which shall affect my salaries date( from the 25 to 1st of every month) & I trusted this change to be effected after a long waiting on the call & efforts trying to explain this to the agent. on the 25th I receive notification of a debit order a bank charge of R150 due to some ***** stupid **** who could not make simple adjustment of the date, I require my banks fee and the airtime I have been using to trying to rectify this change