I've read the above posts and understand Sonic adds the phone because they can make extra money on usage. But if I'm not even capable of using it, Sonic doesn't make money and I'm paying taxes for nothing. This is simply wasteful.
I switched to Sonic because it seems like an honest company and I hate Comcast and AT&T for exactly this kind of reason. Please do not resort to shady business practices. This destroys my trust in Sonic as a company.
Charge whatever fair price you need to make a profit on the service you offer, but do not mislead me and definitely don't make me pay taxes on something I don't even want.