Agh. I'm so sorry about that! Any way your current television provider could handle it? Sorry if I'm going over plenty that you have already. AT&T was just that bad to us at one point.
Everything that happened was something "we" did, but they could fix it if we'd just pay for this service! And when we didn't need said thing is when everything but the phone itself became worse and worse. We were stuck on their dialup too.