VODACOM INSURANCE PLEASE CONTACT ME! ITS NOT RIGHT!

I have an insurance with Vodacom which I have been trying to cancel for over a month now. There is a highly professional and reliable lady working at Vodacom who keeps coming back to me and asking if insurance has contacted me as yet . No. We are heading for the bill for the new month and I am going to be charged again for the Insurance, paying for Vodacom inefficiency. VODACOM PLEASE CONTACT ME SO THAT WE CAN CANCEL MY INSURANCE! it is ridiculous, never again. To make matters worse, it is the insurance for the previous phone that I had which I am paying now, a hard lesson I have learnt.