debit when policy is cancelled

They debit in my account even when their policy is cancelled I real don't like it what is wrong with this insurance companies they think we plough money well we don't and I don't like it when they keep on doing debits unauthorised in my bank account I have responsibilities for that money and the reason I ended up cancelling the policy is that their premium kept on increasing every two months with additional fees that I don't know I real want my money that they debited today I want it back, I work hard for my money I am real not freelance for them to debit when it suit them. dear Clientele life insurance I want my money and I don't wish to ever see you on my Bank debits.