Brightspeed took over on October 3rd. They’re trying very hard to get things up and running, but Centurylink/Quantum/Lumen left a pretty big mess. Your best bet is to just be a squeaky wheel. It sucks to have to be so persistent in something you pay money for, but it’s your best option. I would try all means necessary including phone, email, social media, etc. I wish you luck on your ISP travels.