Power of Attorney — Account Holder Unable to Complete Phone Verification

I need help taking over my sister’s Xfinity account. I am her legally authorized Power of Attorney, and she is unable to participate in a phone call or provide verbal authorization.

I have tried repeatedly to reach Xfinity customer service, but I cannot get through to a human representative. I also tried the Xfinity text-support option, but it requires me to sign in with the account holder’s Xfinity ID.

I need to initiate the appropriate account ownership/account change process for an incapacitated account holder, including her Xfinity Mobile service. I have the legal documentation establishing my authority.

Could an Xfinity Support representative or supervisor please contact me or direct-message me so we can get this process started?

I will provide the account information and documentation through a secure channel rather than posting it publicly.

Thank you.