Horrible Customer service at Supersonic and MTN

Hi

The worst service provider to date. I joined last year and after a few months I had to move. So I was told to cancel so that I an be reconnected at my new place. 30 later end of February someone from Vuma came to install. This happened in March after emailing and complaining and asking what was happening. Eventually Mid March Vuma came. When they were done, I had no internet. Called and emailed again and asked for help so many times but no one knew what was wrong. Until the end of March some guy called after spending 55 minutes on the phone with him he managed to reconnect me. Then came April. They tried to Debit me R2003 and my debit order is R679. I asked what it's for and called but no answer on the phone and no answer on my emails. At this time I have been disconnected with no explanation. On the 17 April a lady answered and she explained what it was for and I paid about R1230 and got reconnected, it was my debit order and a fee for the reconnection. Easy explanation and easy to resolve but instead I was disconnected and no one bothered to email me back or call. End of April they took my debit order of R679 and one day last week at night my wifi stopped working. After that, hot an email that I owe R1511. Till this day. I have emailed and called and no one is responding. No service, no assistance. How do I now suddenly have an amount to pay. Cc MTN as well since this they are part of this company and no one has bothered to even call me as a MTN customer to assist.