Difficulty in cancelling insurance policy as call always gets cut

Trying to cancel a policy with this company is like trying to go to the moon. I have been calling the customer care line multiple times explaining that I want to cancel my policy countless times to various agents only to be transferred to the client retention department and for my call to be dropped. I have used approximately 60 minutes trying to get my policy canceled but to no avail. No one bothered to call me back when they cut the call from their side. When I did manage to speak to an agent, he sent me his email address to forward him proof of my new insurance since my vehicle is financed by ABSA then he will call me back to finalise the cancellation by the way which he never did. Now my question to ABSA is what happens if my vehicle is not financed with you? Will you force me to also show you proof of my new policy? The main reason for my cancellation is that ABSA keeps increasing my premium without notifying me, I`m working from home and yet I must pay a high premium? ABSA needs to get it`s house in order otherwise more clients are going to leave because of the pathetic service. Since I am failing to get assistance with my policy I might as well as reverse it every time they try to debit it.