When you need a company like that to do something, figure out what they're afraid of.
The only thing monopolies like these are afraid of is the government. So if you want them to get off their asses yesterday, raise a stink with whatever arm of your government will listen: FCC, local politicians, etc.
You would not believe how fast even the lowest level government workers can get these guys to take care of your problem with a single phone call.
That's the problem in my country. They're not afraid of anyone. It's a true duopoly here. There's no FCC to complain to, I guess the most you can do is weasel your way out of your contract but that leaves you with no internet. Local politicians don't give two shits (nor do they have any power). You could switch to a different provider, but their network is either copper (aka low speeds and unstable) or fiber (which is a hollow promise right now - there just isn't any fiber in my area).
The only thing monopolies like these are afraid of is the government. So if you want them to get off their asses yesterday, raise a stink with whatever arm of your government will listen: FCC, local politicians, etc.
You would not believe how fast even the lowest level government workers can get these guys to take care of your problem with a single phone call.