Any act permitted or required to be taken by a Participant or beneficiary under this Section 11 may be taken for and on behalf of such Participant or beneficiary by such Participant’s or beneficiary’s duly authorized representative.  Any claim, notice, application or other writing permitted or required to be filed with or given to a party by this Article shall be deemed to have been filed or given when deposited in the U.S. mail, certified or registered mail, return receipt requested, postage prepaid, and properly addressed to the party to whom it is to be given or with whom it is to be filed.  Any such claim, notice, application, or other writing deemed filed or given pursuant to the next foregoing sentence shall in the absence of clear and convincing evidence to the contrary, be deemed to have been received on the fifth business day following the date upon which it was filed or given.  Any such notice, application, or other writing directed to a Participant or beneficiary shall be deemed properly addressed if directed to the address set forth in the written claim filed by such Participant or beneficiary.