I was charged $50.00 for setting up an account with Xfinity, but nowhere on the bills that I received could I tell where $50.00 comes from. The account was set up a few days ago. I opted for the FREE self-installation box and using my own router. This looks very shady and I am going to start a dispute tomorrow.
It sounds like you were charged a deposit for starting service. I can review your account to verify this. Please send me a private message by clicking on my name, "ComcastChe" then click private message me. In the body of this message please verify your first and last name, street address including city state and zip code, and the account number or phone number associated with your services.