Terrible MTN service

I am beyond frustrated with the level of neglect that MTN has for their clients. I am about to lose a car because of the incompetence. My MTN account was firstly handed over without my knowledge. Until I started receiving correspondence from Hammond and Pole attorneys. Hammond and Pole then advised how much I need to pay which I did pay in November already however these arrears reflect on my ITC because between MTN and the attorneys they did not see it fit to rectify my credit profile with them. I am very angry and frustrated because due to unecessary delays i am now faced with the trauma of not being able to purchase a car. It is disgusting the level of service that I am experiencing as a client from MTN. Even after having paid the funds required of me my account not rectified and MTN does not even correspond with me about my account. I require an urgent phone call from this service provider as to how my dilema will be rectified. I am going to lose my vehicle because of MTN being ***********. I paid up all my arrears in full in November 2018 and even paid the reconnection fee what more does this network want from me!!!!!