MTN gives very poor service and the call centre is ridiculous

Mtn has no person in charge or any managers or regional managers that will help, all calls go directly to call centre no matter who or where you call. Once you have spent 30 to 40 minutes with an agent you get a refrence code and after that nothing gets done about your issue you need resolved. I have phoned so many times to cancel a contract that had expired its 24mnths only to be charged a ridiculous amount a week later and when i try query why they attempted to debit my account with this ridiculous amount i get nothing but a refrence number and phone back next week. The service at the call centre is absolutely pathetic to say the least and as far as trying to get hold of someone outside of the call center like a manger you cannot phone or ask for anyone as you just put straight back to the call center. Can someone help me to get in contact with someone at mtn that can resolve my problem in one day and then i never have to have contact with mtn ever in my life again if i can help it. I want to pay the month i owe and my sons contract that ends on Saturday and nevet have to deal with them. I JUST WANT HELP TO CLOSE MY CONTRACTS AND PAY MY 2 MONTHS AND BE DONE WITH MTN. I have spent many hours crying and in tears due to lack of care and help from mtn.