America Unlimited vs Comcast

I have had nothing but trouble from Comcast. When we first signed up my 84 year old mother was only charged $20 a month for her phone service which was great! I had to add internet for a few months to use a canary to see how she was getting around in her apartment. They signed us up for another contract without telling us and then when I took the internet off her phone bill was $60 a month! She is on a fixed income and cannot afford this phone bill. After calling and talking with several people no one would reduce her payment back to the original $20. I found a wireless router through straight talk and you can still use your home phone and it is only $15 a month. If you have any other sources to use please use someone else besides Comcast. They would not even import her phone number over and we had to change her phone number!!