MTN's Accounts Department SUCKS

Referring back to problem 17 February 2021 and 1 March 2021,once again my account was debited on the 23rd of March 2021. This now caused my bank to debit me with an unpaid item of R110.00 due to insufficient funds. Yet correspondence email received from MTN clearly states my debit orders are for the 1st of the month. What happened here ? This time MTN must credit my account with the R110.00 the bank took because MTN's Accounts Department is not doing their work. This is just never ending... Previous Reference Number: ***