Pathetic service, unauthorized debit orders

I would like to share my bad experience with AVBOB, I took out a new policy with them few months ago. So far I'm very disappointed with their services and the way they treat their customers. I've asked for my premiums to be debited on the 20th of each month but they've been debiting me on any date that suits them. This month I was even debited on the 13th, when you call the call center you get a stupid reason to say it's because you the debicheck. I asked them to cancel their policy and refund me all my money back because I can't stand this nonsense every month. They have none existing managers, they will tell you that manager will call you but that will never happen. All I'm asking is to cancel the policy, get all my money back then I will go to the service provider that will put the client first and understand the reason why you choose to be debited on a specific date