Call Comcast/Xfinity customer service at 1-800-XFINITY (1-800-934-6489)
Use the Xfinity app or website chat to request cancellation
Ask for the exact cancellation date
Return all rented equipment, including modem, router, cable box, and remote
Get a return receipt and keep it for your records
Ask for a final bill and confirm any early termination fees
Cancel any autopay or recurring payment after the final bill is settled
Confirm the account is fully closed
Save the cancellation confirmation number and any email confirmation