Doing as they please in my bank account

I have asked that the debit goes off from my account on the arranged date as per contract on the 1st of every month. Last month I had this same problem that MiWay does as they please and debits anytime they want to. The funds in my account are not there because there's nothing to do with them. This is very inconveniencing and I need it resorted with immediate effect.

This problem is not intolerable and I need this resolved now! Last months have been a problem as MiWay has been debiting my account anytime they feel like it. Agreed debit date as per contract is the 1st of every month and to this day I'm getting debit orders anytime, even today my account was debited. Last month a spoke to a consultant who assured that she fixed it on the system and its back on the 1st day of every month and it wont happen again, well it happened again today It is very inconveniencing and inconsiderate and I need this fixed with immediate effect.

I will not tolerate being inconvenienced. My policy is not in arrears and I haven't signed up for a different debit date.