Billed my account 5 days before the agreed upon dt

I have been with auto and general forever for my car insurance. They deduct on a certain date, which is on my pay pay and have never had a problem.<br> <br> This month they decided to deduct 5 days before the agreed upon date without my authority. What would possess them to decide to manage my finance by deducting money from my bank account 5 days before pay day. <br> It is wrong because it's not as per the agreed contract and it has caused great inconvenience that is really unnecessary.