Unhappy existing client

This is my previous insurer for my car that was written off and they paid everything with no hustle. But for my new car, you are messing up big time!! I took insurance with you and we agreed on a premium, when I requested an update to my VIN number, Engine number and some details on my policy, the premium went up. I raised this issue a couple of times and you still debited my account without my permission. You better fix this or am canceling this policy.