BREACH OF CONTRACT

I am tired of sending emails to CAPFIN regarding the debit order date. As per our agreement, my debit date should be on the 27th of every month but this is NOT the case. My account is always debited on the 24th, which is before my pay date. If pay day is on Wednesday, my account will be debited on Tues. This is negatively affecting my back account and my credit record!!!!!!!!!!!!!! I have sent numerous emails in regards to this with no resolution from CAPFIN. I honestly feel this is breach of contract!!!!!!!!!!!!!!!!! CAN THIS BE RESOLVED before the 25th as I am NOT prepared to pay extra bank charges. Can i get refunded for all the back charges I have incurred.