So sick and tired of this insurance company

I have never in my life experienced such bad service as I have with miway the past year. They have raken off wrong debit orders off of my account 3 times, they have said they would refund the bank costs till today nothing has happened, I need to give bank statements, which will cost me more money, hence it shouldn’t even have gone off of my account but my husbands. Non the less, after cancelling the policy on my name with them for over a year now it still reflects on my credit, affecting my affordability, I have phoned 6times now asking to have it removed?? I am left to believe that these people are not trained properly and incappable of doing their jobs correctly whatsoever, my husband has gone to go to the ombudsman regarding this, but still they do not seem to care. My mother and parents-in-law have cancelled their insurance with miway and have moved to other insurance companies, I will make it my goal in life to tell people what bad service they deliver, if they are so useless to fix something so small, how could they possible handle bigger issues, eg. Paying for accidents??? Disgusted to say the least.