MTN SA denies me communication and gives me a bad credit.

My story started last year 2017 August when my MTN contract was up for an upgrade. I took out the contract for my father and decided not to upgrade when my two year period was up. When i called MTN SA to cancel my contract and opt out of an upgrade, to my surprise i had already upgraded for another 2 years and the consultant was asking for a delivery address. I was **********ly upgraded for a second cycle. I explained my story to the lady on the other end of my line to say there must be a confession cause i never spoke to anyone regarding an upgrade. She vowed to escalate my matter, like her and the many others after the message become the same for me, " " your matter has been escalated we will call you soon" that soon turned to three months and then to five months. MTN SA keeps disconnecting my father's cellphone line, my father is self employed and users his phone to connect with his customers and now has to go on without a phone for weeks on end. What makes MTN SA so unprofessional is that in the past five months no-one has bothered to call me, give me updates or at least explain to me what is happening or what they are doing on they end. I visited one of the MTN SA branches to get assistance and was advised to get an affidavit explaining my ***** allegations which i have done and still no response, every time i call MTN SA it is still the same response. To top things off the ***** did not happen at my house it happened internally at MTN SA should they not be the ones to be getting ***** affidavit. I have requested recordings of the phone call where i apparently agreed to this upgrade. MTN SA please let me go you are affecting my credit scoring, you are affecting my fathers business, you are frustrating me, I don't even know how or where to communicate in order for you to hear me. The worst thing i ever did in my life was to do business with you, am trapped in hell.