MTN Insurance Billling Nightmare

Account Number: A*** Its seems that MTn can not even get the basics right. I cancelled my cellphone insurance with mtn on the 8th of November 2020. I received a sms on the same day confirming that my request would be actioned. In December I received an invoice still reflecting the insurance amount, I then contacted mtn's "s****ed" call centre and was advise to only pay the amount for my device services and not to pay the insurance amount as they did receive the cancellation request. I duly paid the full account less the insurance amount only for them to suspend my acc a few days later. I had to make several call for them to "fix" it. this has now happened for the past 3 months and I'm still being billed for the insurance and my account gets suspended. MTN PLEASE CANCEL THE INSURANCE