MTN False product advertising and selling 😡

I would like to express my deepest disappointment with MTN for falsely advertising and selling a product to me ,which I have been trying to cancel for almost 2 months now and with no assistance, I have been switched from department to department and now forced to pay almost R200 extra on my contract for data that I do not need as I already have a Wi-Fi package that I am paying for 😡 so so disgusted and at this point cutting of my contract and never looking back is all I need