Every utility shall permit a residential customer to designate a third party to receive all notifications relating to termination, disconnection or suspension of service or other credit actions sent to such residential customer, provided that the designated third party agrees in writing to receive such notices. The utility shall inform the third party that the authorization to receive such notices does not constitute acceptance of any liability on the third party for service provided to the customer. The utility shall promptly notify the residential customer of the refusal or cancellation of such authorization by the third party.