CLUELESS company Do NOT use if you can help it

Our area which had a Link Africa fibre installation has sold to Vumatel . They phoned me to make an appointment to swop out the box in my house . They arrived (4hours late) swopped out the box, when I told them the internet was not working they said it would be sorted in an hour. 5 hours later still no internet. Numerous calls to there offices still nothing - they cannot even find me on the system, keep asking me when did I do the order !!!! But assured me they would sort it out, even though no one had heard of this project ! Next day still no internet - phoned again spoke to people just got nowhere , so I tracked down the technician that was still in the estate swopping out peoples Link Africa boxes and begged him to return my Link Africa box which he did as he also could not get an answer for me. So now I have internet but I am not sure for how long as I assume at some point they will turn off the Link Africa boxes. But still cannot find anyone at Vuma that knows anything or can assist !!!!!!!! such a massive project yet they are all clueless!!!!!!!!!!!