Bad customer service and even worse Fiber connection

Since several months ago I had been experiencing slow connectivity issues on my fiber line with Vumatel and Supersonic, I then decided to upgrade to a 50mb upload and 50mb download speed about 3 months ago because I rely on the line to work. Taking my line to very close to R1000 per month. It has been worse since the upgrade and got extremely bad a month ago. I have had so many calls with Supersonic regarding my fiber line, I have numerous case numbers and cases logged that have proven to go no where as the issues continue and feedback is never given. Two weeks ago when the connectivity issues got especially bad and I was unable to work on the line I contacted Supersonic customer service to report the issue. They asked me questions and logged a case, I lost a day of work as I was told there was no specific turn around time for resolution of the case. A day later my connection was still down and I was looking at loosing another day of work so I call back as nobody had called me. On that call I was told I have no Fiber connection and a different ticket needs to be logged with Vumatel this time as they own the fiber line that provides my connection. Another day lost of work and another 24 hours before I will get a call back. I never got a call back! After 3 days of work lost! Bare in mind I do NOT get paid for the days I can not work because of my own internet issues. At that point I was extremely disappointed, frustrated and at my wits end as I was now getting in trouble at work for not being able to be productive and see through a shift. A week goes by and miraculously I am able to work but still have intermittent connectivity issues. Until now. I am sitting here once again unable to work, already with a warning to my name, Three days of money lost previously and I am STILL IN THE SAME POSITION. Called supersonic 2 times today, First got through to Phumi who I discussed the issue with and asked to please call me back if the line drops as I was running out of airtime and my banking app was not working at the time. Did she call back when the line dropped in the middle of our discussion? NO! So I call back and speak to Hlengiwe, and I am super frustrated and she tells me that my previous ticket logged to Vumatel weeks ago was closed stating "connectivity issues resolved" I repeat I NEVER GOT THAT FEEDBACK at the time and now there has been another ticket logged with Vumatel to get the same issue resolved. I then asked to speak to a manager and am told they can not get a manager on this call, a call back request will need to be logged and they can not tell me how long it will take for a call back because it depends on how many calls the manager has to do that day. In other words they can not tell me if it will take take 24 hours or 10 weeks to get a call back... I have had the worst customer service experience with supersonic, all they give is empty promises and its clear the associates who answer calls have no consequence for bad service or not following up or calling back. Which is ridiculous and Its honestly extremely disappointing for a customer who pays every month for a simple service. I am now waiting for a managers call back which in all honestly I am pretty sure I will not get based on past experience with this company. I would not recommend Supersonic for service or Vumatel for fiber connection to ANYBODY. I am loosing days at work that they don't care about or address, which is money I CAN NOT loose as a single mother. Not only that but I am now faced with work troubles and possible formal disciplinary action at work. All because Vumatel can not provide me the Fiber connection I pay for and Supersonic are not capable of the customer service and support they promise. Disappointing at the least!