Shubham insists the only way to remove my phone number is by reporting abuse

This is how the support is?? I have a new number and I am getting all of someone's Xfinity account related texts.

Shubham from customer service insists the only way to remove my phone number from someone else's account is by filling a fraud report through the Report Abuse link. 

This is absolutely infuriating. I explained over and over this is not fraud. He waits 35 minutes before responding to the next message, we've been on the chat for over 2 hours now. None of the ticket reasons on the Report Abuse link apply to my situation. I just want my phone number removed form someone's account because I am not an Xfinity customer and I am getting someone else's Xfinity notifications!! 

The person before him told me they would go ahead and get the person's service disconnected and then left the chat! That one felt malicious. I can't stand this company and this is exactly why I am not a customer.