Frustrated!!!

I have been calling multichoice at least once a week for last two months. My services were disconnected when I called I was told that I owe over R 1300. I eventually spoke to a team leader who then realised that I was double billed and I actually have a credit on my account. He then reconnected and promised to reverse everything. A few days later the same thing happened and had to call to be reconnected..this happened every week and the bill kept going up because of the reconnection fees on both my decoders. Last Thursday the 31st Oct 2019 I called yet again to be told that everything will be escalated to their finance department and they will call me back...none of them have called me back. I was also told that I shouldn't pay my bill before the billing date that might be confusing the system?!?! I use my airtime to call & be put on hold for a very long time then be told that they will call me back. I've been waiting for so many team leaders to call and explain to me why my bill is still more than my subscription.