wrong debit date

since you only reply or take our queries to head when we use this platform,you decided to debit my account on the 30th and my contract clearly said the 1st or your Miway calender is different from mine or the bank but i what i know is that the incompetence cause me a bank charge which you better re emburse me,i don't want a sorry or a \will lool into it "and please insure that next time the debit goes on the correct date or i assure you it will be the last time"""