Vodacom Pathetic when comes to billing!!

I Have Problem with Vodacom, I have been loyal Customer for Many Years , Last Year I Got Upgrade of My IPhone 11 September last year to IPhone 12 , When I got the phone, When discussing How much The IPhone 12s were going be they mentioned to Me And do you want to carry on Finrite insurance for your phone , and I said that’s funny nobody discussed the insurance with Me And I have my own insurance, and Apparently I Was Paying from 4 Years ago and when I got my IPhone 12s I said please cancel it , Which was not done because I got message in June To Tell me Vodacom wants to inform you your Finrite Insurance Ends On The 1 July 2022 , They told how much Data and Airtime, I Have Cell phone And So Does My Daughter, I have Few Contracts, this is how my billing went along from January 2022 R 3,307.00 February 2022 R 3.33297 , March 2022 Got Upgrade for one of my Contracts R3.333,71 (Can Understand with upgrade it went up , April 2022 R 3,56196 , May 2022 R 3,675.00 June 2022 R 3,734.88 July 2022 R 3.3764.00 every Month without my consent just takes money out of my account , I can understand things go up but not every month it’s Insane, when I call them they send me my invoice but I don’t have open line , I get data , And Airtime and so does my daughter and when that finished we top up , I spoke to a lady last week and she will call Me Back and still waiting, I would like this to be sorted out and I would like my money back that I paid For Finrite insurance for 4 Years ( for which I did not give my consent to , Please can you try and help me because , each time I call there is always an excuse, Thankyou so Much, Kind Regards Cherilyn Rabinowitz *** .