Month to Month contract cancellations

I am at my wits' end with how MTN has chosen to handle (or rather not) my matter. I had requested for cancellation on 2 month to month contracts that I had with MTN. I am however still being billed on both. I had taken up a Home Pro 20Mbps Uncapped contract which I cancelled back in November / December 2024 after struggling (for an extended period) to establish connectivity at my property. During this period I had consistently been in communication with MTN to seek assistance to which none was obtained. I was at a much later stage advised that the contract (Home Pro 20Mbps) should not have been issued to me as my area did not have coverage - The consultant who assisted me should have checked for coverage but they did not, (Note: I had already paid an amount of R539.71 in advance). I had at an earlier stage taken up the Home Starter 10Mbps Uncapped router which I returned in January 2025... To date I am STILL being billed on both accounts, for products I DO NOT have. Each time i query the cancellation of these contracts I get sent from pillar to post... I have been sending e-mails to customercare.co.za... Initially my query was received and handled by Nonkululeko Malambo who has now disappeared without having issued a solution. All my other e-mails have since been ignored.