My phone line was ******!

This is the second time now my phone line has been hijacked. I was working this morning and noticed my ADSL line went down, I then checked and my entire phone line was dead. I looked out the window and sure enough there was a Telkom tech busy on the pole outside my house that hadn't been there 5mins before. I went and asked him what he had just done and why my line suddenly went dead the moment he started working. He informed me he was doing an install for another person and line issues were not his problem. He then said his work was done and his new line was connected and there was nothing he could do and off he went. The exact same thing happened 4 months ago. Why is it that every-time a new line is installed I loose my line. Its then a huge issue as I have VDSL then I have to get the line repaired and re-setup and synced correctly for VDSL which takes days. Is it lack of training that the tech messes things up when working or is it just easier to ***** a line for a quick job completion.