Absolute appaling airfibre service

MTN *** | Supersonic *** Absolute nightmare dealing with MTN and Supersonic right now. My internet has been dropping completely for up to 12 hours a day, and when it is working, I'm paying R999 for a crawling 20 Mbps instead of the 150 Mbps+ I'm supposed to be getting. Every time I call support, I get a completely different story, and to top it off, I was promised technicians would come to my house today—nobody showed up and nobody bothered to call. Utterly appalling service. Wouldn't recommend this to anyone.