Disgusting service from Cell C

I had a contract with Cell C and since I no longer have the phone, I attempted cancelling the insurance. Firstly I called Cell and they could not pick up on any insurance for me despite me having signed the contract with them. They then referred me to C Surance and there I got the same story. I then got a statement as requested, sent it to Cell C and was told it is not them. Called the bank and confirmed it was C surance. I called C surance yet again and they confirmed it is their product but can once again not find that they are debiting my account. I asked the consultant to then put me through to her supervisor to assist me if she could not and she made as if she could not hear me and out me on hold. I find this run around to be pathetic when it took me all of 5 minutes to sign up for the insurance.