MTN not assisting

Yet again MTN has left me frustrated. After being promised to be contacted by someone from MTN to resolve my problem personally i have received feedback in the form of a text message stating that i owe over R8000. If i was unclear in my initial complaint allow me to clarify I REQUESTED FOR MY CONTRACT TO BE TERMINATED IN JUNE AFTER I HAD PAID UP ALL MONIES OWED. i did not want to continue with MTN but because MTN was on strike they could not do that.IS THAT MY FAULT? what exactly do i owe R8000 for? I have seriously reached my limit with this and the pathetic service mtn provides. Does it really take the legal department months to give me a balance? Or was that just a ploy to keep adding interest to the amount you claim i owe. Its this type of service which caused so many people to switch providers. I feel that my frustrations need to be heard. I am not interested in receiving sms's,i want to speak to someone who can help me. I refuse to pay when YOU were at fault and i kept up to my end of the contract. I am a parent with responsibilities and i dont have money to waste. Ive wasted enough time with MTN incompetence already.