I don't know what to do anymore my record is now missed up.

Around March I change the bank and also switch my debit orders including the deduction date from the 25th to the 1st of every month, the consultant called me from miway to confirm the debit switch and the deduction date, Surprisingly around April deductions for my household insurance went on the 25, not on the 1st as agreed. A consulted called me as debit didn't go through I confirmed that the debit should go on the 1st, around May same routine happen. This morning I also received unpaid debit, every time there is an unpaid debit i had to pay bank charges almost equal to the installment. I don't know what to do anymore my record is now missed up.