Skybeam Is it acceptable to be without service for over 3 weeks? Arlington, Texas

We have had the absolute worst service from this company. Its not bad enough that the service that they provide is intermitten at best, but to add insult to injury, the lack of customer care or reasonable technical support is over the top.
We have been without service for over 3 weeks now. Each week we call and complain, or simply sit on hold on the phone for over an hour and a half. When we have actually talked to a human, the attitude could not be worse. I suppose if I were getting my rear end chewed out all day everyday I may have a poor disposition also.
We contacted Skybeam on Monday via phone and sat on hold for over an hour and half before giving up. I then sent an email to the technical support, which has never been responded to. I called them again this morning and held for 30+ minutes before actually talking to Cameron in technical support. He was nice enough but clearly did not detect my frustration level as he kept me on the phone for 20 minutes only to tell me that they would have to send a field tech out (again) and oh yea, it will be 2 days from today and between the hours of 10am and 2pm. Im not sure when service providers opted to treat customers like the cable company does, but have you seen the stock value of cable companies these days? Probably not a good business model.