Requesting Corporate Digital Care Team Supervisor Assistance for Home Internet Situation

Greetings, while I have used Xfinity Assistant and even chatted with reps in the main app, they do not appear to understand my situation at all. After fully explaining it, they still circle around and answer additional questions that completely contradict my situation. I would like the correct information from a supervisor so that I know exactly what penalties i'm looking at-- or if Xfinity is willing to work with me, I would like that confirmed by someone who has the powers to do so. 

We are low income and have the Xfinity Essentials package with home gateway. When I moved in with my girlfriend, I had this service installed in the home. Things have gotten very volatile and I have had to exit the situation. I did not think to, nor likely would have been able to, grab the gateway. I would like to cancel the service, but I expect Xfinity to request the Gateway be returned. If not returned, I need to know the exact penalty and potential towards any future business with Xfinity in the future. For 3 months now, I have just paid the $14.95 monthly even though I have not been there. I have tried to get the Gateway back, it's unfortunately not going to happen. I have lost many other personal items, as well. 

I do not wish to keep paying for service in a household I do not reside. I have also attempted to have the account ownership transferred to the homeowner. She cooperated through most of the process, but then was incarcerated through the confirmation and the transfer never completed. 

I just want to know what i'm looking at so I have the ability to resolve it within the proper timeframe of canceling, as I don't want to impact my future eligibility. Online searches have stated their may be an option for a Supervisor to mark the equipment 'unrecoverable' in a way that doesn't penalize me. This would be very gracious but I know it is my burden to deal with and do not expect it, nor do I know if that is true. 

Thank you for your assistance!

Shane