MTN's Supersonic is a failure

It pains me that I went out of my way to approach SuperSonic (MTN's Fibre service provider subsidiary) to be my Fibre service provider. There were so many others to choose from, but I thought whith my 20years as a MTN customer, I can expect the same level of service from their subsidiaries. Well I was sadly mistaken, and it is evident of other reviews posted on this website, that the Supersonic customers are unhappy with the service they receive from Supersonic. I've send countless emails, made phone calls and write reviews to get a response from Supersonic, but alas, once you are signed up as a customer, you are stuck with bad or No service! I would like to know if MTN has any hand in the day-to-day operations of Supersonic, or if they at least will take the numerous bad reviews about their subsidiary in consideration and do something about it?