Line is down and waited 40min on the line with still no feedback as to why

Roughly an hour ago my internet went down the moment evotel and a third party started to install internet or check signal by another unit in our complex, not sure as the story changes with the gents currently at the complex. Phoned vox support and have been on the line waiting for 40 minutes to receive feedback as to what the reason is as to why my internet is suddenly down as my connection should not be affected by a new installation at another unit, not should it be affected if they checking signal. The agent that was assisting me is helpfull and friendly, but how long does it take to obtain feedback from evotel and all other parties to resolve the issue and get my connection back up