Comcast / Xfinity review: Unwanted upgrade cable box 1

In the year of 2023, Xfinity unknowingly delivered an upgrade to my location at 1654 Elm Ridge Way, Stone Mountain, GA. Although, I did not request an upgrade box, I tried to install it. However, I could not get the upgraded box to work. So, I requested a technician to come out and install the box. The technician was unable to properly install the box also which this is extra service I pay Xfinity for every month (technican support). So, I ask the technician to take the upgrade box back to the company which he refused to do so. So, over the time, I requested a return label which no one would send out for the unwanted and Un installable box. Now as of December 2023, I realized that a hidden charge as been applied to my account for twelve months for a box I did not request or utilize. In the month of December, I have called into the Xfinity office to request downgrade of service for the bill was too high. At this time, I was advised that an additional $30.00 was applied to my account for equipment which I did not request or utilize. The agent agreed to send a complaint number to my email which I never received and put in a request for the wrongful charges on my account which I never received so now I am asking for the refund of 650.00 to become credited back to my which was unknowingly taken from me as an loyal Xfinity customer.