Where do I file a complaint about terrible customer service?

I have the full chat transcript, but here's a summary:

Xfinity Assistant (bot): Identified the modem as offline and pushed a paid tech visit. Missed the outage and looped on billing menus instead of addressing the cost concern.

Jackson: Did diagnostics, had you power-cycle, and promised a credit. Repeatedly denied any outage, contradicted himself when you showed the notice, and sent you to a "higher team" instead of a supervisor.

Savita: Greeted you and passed you along. No troubleshooting, no answers.

Hrishikesh: Apologized and clarified you'd been sent to the repair team, not a supervisor. Dodged the complaint question ("no need for this") and never addressed the outage.

Anamika: Confirmed the outage and gave a 2:14 PM restoration time. Failed to give a working complaint channel (bad address, then the wrong email), went silent, and never transferred you to a boss.

Overall: The outage was missed or denied early on, the complaint question was never answered, and no one got you to a real supervisor.