Debited on incorrect date.

Dear Finchoice

My debit orders are supposed to go off on the last day of the month. This month they went off 25th March 2020. I tried calling I could not get any assistance I kept on being transferred until I ran out of minutes. I had no choice but to reverse the debit orders as the funds available in my account on the 25th were meant for something else. This is also not acceptable as the agreement I have with finchoice and fine choice is to debit on the last day of the month. Is finchocie and fonechoice going to take responsibility of the bank charges? Please can urgently assist me on this by ensuring this does not happen again and that the debit orders do go off on the correct date.