Sounds like somebody was playing around in the distribution box. Probably took your line right off the feed. You can try opening the box. Hopefully they just unhooked you, but chances are they took the filters and terminated your line.
At any rate I would be on the phone with a supervisor. You pay your bill right? Then why are you inconvenienced by something that one of their techs did. Tell them you need internet access for work, school, etc. and you want it fixed immediately. Don’t take no for an answer.