Outside wiring

I'm a cable  customer. Someone knocked on my door this AM and said he was from Telecable and that they would replacing the old Cable wiring outside my house in the next few days. I tried calling  your help line to verify ( given your recent datacbreach, I am leery).   I eventually reached a live person and at first he said there was no work scheduled in my neighborhood. I insisted he check further and a minute later, he said yes , there was scheduled wiring changes  but could not tell me when. I am still concerned and would like it verified again. I am in a Condo and if the ground is going to ripped up, I need to inform the Condo Association,.  Also,  if this is legitimate, I don't understand why I was not notified ahead of time via e-mail or phone call, both of which you have on record.