Getting vumatel to resolve a problem is like pulling teeth

It's been day 10 with no internet. My ISP has investigated and it seems Vumatel disconnected my line in error. Tickets has been logged. Vumatel eventually contacted me via whatsapp and I was hopeful but that turned out a total waste of time. They blue tick me and does not respond. Day 6 of whatsapping them and still no resolution because nobody can figure out what's the issue, yet they won't send out a technician. I work from home and this has caused financial stress and has cost implications for me. I would not recommend them as a Fibre provider.