Please stop discontinuing my account

I have a contract TOP UP.<br> <br> But every month I have to go through the hustle of my account being suspended because of some discounts that MTN adds to my bill on the 1st of every month.<br> <br> But these discounts gets reflected on my account for the entire month disabling me from using the service that I pay for, they debit my account every month but soon after that they add these discounts and this continues.<br> <br> This has been going on for 5 months now. I pay but can't use my phone. I have to be subjected to the horrible MTN call centre for hours and I get through some stupid call centre agent that can't assist because they are clueless about the service.<br> <br> I am just tired of MTN services, they promised me R250 worth of airtime as I wanted to cancel my Contract now I have this hustle. I can recharge my account, and I can't use my number and they don't give a **** as long as they get their money.<br>