Can't get anything done with this company

We have a house in Maryland and a house in Florida. We called customer service to get a better rate for our house in Florida since we are not there much. The lady on the phone the only way we can reduce the monthly costs is to get a  comcast cell phone. We told her we have cell phones and don't need a phone. She tried again to talk us into taking a cell phone and we told her know. We'll she sent one to our home in Florida where we have not been for the last 6 months. It has been sitting down in Florida and Comcast has been billing us $65 a month. We asked our home watch person to take it to the store so they would stop billing and the store told him only the owners could return it. So we came down in June to return it and went to the Comcast store and they would not take it back. We'll we had 3 cop cars there pretty quick. We are so pissed off. The amount if time we are spending and no one can take this phone back. So we continue to ask for a label so we can send it back and Comcast is saying since it's past 30 days we cannot return it. They continue to bill us for the cell phone and we have no solution. We keep calling customer service and they say they are trying to resolve it. We want to speak with Tom Karinshak the Vp or customer service ASAP.