Can’t get service

New service set up Saturday. Lasted 2 hours. Called in, 1st appointment to fix outside lines (that they just installed improperly) 6 days later. Explained I run a small business so moved up to 4 days later. Called Appointment department Monday morning and said a tech would be out to fix that day between 3-5. Very happy. Tech no show. Called in, no record of appointment made. Next appointment even later than first scheduled. Supervisor said they made mistakes, very sorry, can’t do anything. Meanwhile billing department is on it, wanting payment for a service we don’t have. Even Spectrum provided better service than this and that’s saying something. So far lots of requests for surveys that I’m sure no one reads. So angry, frustrated, can’t understand why not one interaction so far has been with someone competent who can actually do something. Any advice?