Installation pending.... 3 weeks later

It has been about 3 weeks and I STILL have no telephone line installed for my home wifi. The week before on the 13th of November 2017, specialists who fix underground cables were meant to be fixed. The technician travels 110kms every time just to tell me he is unable to install the line because the underground cable is still damaged. My question is now, Telkom, how many years or months does it really take for a line to be installed. I now no longer believe your "It'll be installed by next week." What is also very upsetting and irritating is the fact that I have to play Sherlock Holmes and nag the head office to actually give me feedback. I am certain you guys will send another generic response to this... Why is it so hard for a company this big to keep their promises?