Call Comcast/Xfinity customer service at 1-800-XFINITY (1-800-934-6489)
Log in to your Xfinity account and use the chat or cancellation options
Visit an Xfinity Store in person to request cancellation
Ask for the exact cancellation date and any final charges
Return any rented equipment, such as modems, routers, or TV boxes
Get a receipt or confirmation number for the cancellation
Check your final bill for prorated charges or early termination fees
Cancel any autopay or linked payment methods after the final bill is settled