Need to Cancel Xfinity Service While Abroad – No Access to U.S. Phone Number

Hello, I would like to cancel my Xfinity service completely.

I am currently living outside the United States and no longer have access to the U.S. phone number that was associated with my account, so I am unable to complete the cancellation by phone or callback.

I can provide my full name, service address, account information, and any other information needed to verify my identity.

Please help me cancel the service and confirm the effective cancellation date and any remaining balance or equipment that needs to be returned.