1 week and counting of useless service

Last Tuesday morning just before 8am the Fibre in my complex went offline. I have had a multitude of different conflicting stories from my ISP regarding the issue once they had spoken to SADV which is now Vumatel. Vumatel doesn't allow me to contact them directly, so painfully all of this had to be managed via my ISP. So I am not sure if a lot of my experience is broken telephone or what. But I do have 3 log numbers for Vumatel, so guessing my case did reach them.

I was first told it's just me, when I already know my neighbors are off too (same fibre provider, not the other in our area). I was also told that Vumatel would be onsite that same day to tackle the issue. The next day I was told they are already on site and will be restored in a hour or two. By Friday still nothing and I was then told that they would be on site 6am Saturday morning. Some time on Saturday the Fibre worked again, but kept disconecting and was terribly slow, some speed tests revealed 0.1/0.3 on my 100/100 fibre... After logging the complaint with my ISP and them contacting Vumatel. I was informed that they ran tests and everything is perfect and there are no more issues and that it must be my ONT device. Sunday it worked a bit better and disconnected still. I contacted again, this time to be informed that even my connection seems perfect and they will no longer send someone to test my ONT and connectivity. Monday morning, down again, this time I'm told it was logged with the provider. Tuesday, off and now Wednesday still off. Tuesday I was contacted by Vumatel stating that someone is on site, I'm yet to see someone on site. Security at my complex says they have not seen 1 person from Vumatel on site since the issue.

When will Vumatel actually show up? I have my essential services certificate since day 1, yet for the last week I cannot work from home. Instead I have to go to the office where I really would not like to be at the moment.