Suspected tree damage

Last year Telus contractors installed the fibre conduits and lines in our neighborhood. A conduit port was dug up adjacent to our 40+ year old tree, and what I assume are it's extensive root system. Since then, the tree which was regularly watered in he summer/fall, has been dying, with so many needles gone brown an fallen off.

I see news reports and complaints on reddit, but what did others do to get a hold of Telus? Is there a phone number I can call regarding such an issue? 311 in Calgary said they are unable to intervene since this is a private matter

Telus: if you're reading, let me know what is next. Can you send a representative out to investigate?