Vuma came to my complex, they introduced their fibre

Vuma came to my complex, they introduced their fibre. They said whatever network we want we must contact them not network providers. Vuma agent signed me with VOX. Friday morning I was trying to work I couldn't connect there was no internet I tried to contact Vuma they said I must contact Vox. Vox is saying the issue it's with Vuma and Vumatel. They are all pointing fingers no one is taking responsibility to fix whatever issue. I'm so drained I'm a paying customer for goodness sake I'm still with no internet. I've never seen such a horrible service