I have had my own modem for years with Xfinity and my bill has been $25. I just moved to a new building last week. I was told numerous times including a rep that spoke to the leasing office I could still use my own modem. The customer service rep called me from her personal phone to explain that in order to have the tech come out, she would have to add the $15/month rented modem. The tech comes, that is not the case. My new building is only compatible with fiber-optic.
I call the service rep back (she told me her name is Maria) and she stated her supervisor made a mistake but not only could she give me a new promo for $35/month, the supervisor was "working" on something to give me an additional $5.00 off so my total bill would be $30/month. I didn't hear back so I called "Maria" back a day later. He phine went straight to vm..she blocked my number!! In addition, I called the 1-888 xfinity number, there were absolutely no notes about anything that this Maria spoke to me about. Please track down this terrible, lying service rep and her supervisor.