2 Accounts, 2 separate service lines, Same address

I am unable to get ahold of anyone who can assist me with setting up a separate line of service at my home address. There is already one Xfinity gateway and service issued to this address and am going to set up another just for me entirely with my own modem and router as well. It IS POSSIBLE to have two account AND two separate service lines at the same address. I only want Xfinity internet not Xfinity TV too because I know that only one account can have both for the two accounts to work properly at the same address. I know of this having been done and there was no issues and there wasn’t any need to tweak the address or any other sort of unnecessary things. I just need an agent that is well versed in their job that can handle this for me. All other agents either give different answers or simply unhelpful. Please can I get in touch with someone so I can get this over with.