Vodacom/Finrite is charging me for cellphone insurance that I did not sign for on my contract and I cannot get a hold of anyone on their customer service line to rectify this

I've upgraded my Vodacom contract in February 2020 and declined being insured by the Finrite Comp Insurance when signing the contract. I was covered for Finrite Comp Insurance on my previous handset and due to the upgrade decided to cancel the insurance on that handset since it is no longer in use due to the upgrade. Since February, I have tried calling the Vodacom Finrite Insurance number ********** numerous times and no one picks up. The line is placed on hold for about 15 minutes until it cuts out by itself and then I have to call again. I then received an SMS from Vodacom on 2 May 2020 stating that Comp Insurance for my new handset has been activated, insurance which I did not sign for in my contract agreement. I have checked my cellphone statement for this month and I'm being charged for Comp insurance on both my previous and current handset now. I cannot get a hold of customer service personnel on ********** to cancel this either. I tried both options when calling the number and still no one picks up, Option 1 is for claims and option 2 is for policy administration. There are no other options to select from. This further iterates why I want to cancel my Vodacom Finrite Cellphone Insurance, because if something happens to the phone and I need to submit a claim, I cannot because no one answers when you call. I am being charged for insurance that I did not sign for. Due to being on lockdown I am currently on unpaid leave and being charged by for something that, I repeat, I did not agree to or sign for on my contract. That cannot possibly be legal. I would just like someone to please get back to me and help me cancel both Vodacom Finrite insurance policies on my previous and current handset please. I am so upset and feel completely helpless since I cannot get a hold of anyone when I call.