MTN - Tired of paying for services, not rendered.

I have had my account and my kids account since I had my first cell phone. The kids I got a little later. Needless to say, I have been an MTN customer for years. I was retrenched and I was struggling pay all 3 accounts. Last year I called, and my account was in arrears, I am on a month-to-month contract. I said I would pay it up and I wanted to close the 2 accounts. They would only allow me to close the account if I paid it up. I was unable to do so. The kids are not using their accounts at all, yet I still have a monthly bill of R500. Once again, I called today and said that I am prepared to make a payment arrangement, but I need to close the accounts as it is not being used. I spoke to 6 different people in different departments and was told to first pay up the money due, I asked to make a payment arrangement for 3 months, they said its fine, however I would still need to pay my monthly fees too. I kept telling them that I am struggling to make the payments but will really try to do the 3-month arrangement. How can I still pay for a month-to-month contract when clearly, I am unable to. And on top of that the data and bundles are no longer being used. I am tired of being abused by a system that has no consideration for their customer. MTN has now shown me that the clearly don't need my business. They have shown that their only concern is making money or taking money irrespective of people's circumstance. They are not flexible and not willing to assist their loyal customers at any point! I am done with MTN, and I will also share this with on different media platforms. Yes, I am tired of paying for services and whilst I may be in arrears, I have been paying for over 20 years to a company who seems to have a policy of taking customers money.