Any notices, requests, demands and other communications provided for by this Agreement shall be sufficient if in writing and delivered in person or sent by registered or certified mail, postage paid, to Executive at the last address Executive has filed in writing with the Bank, or, in the case of the Bank, to the attention of the Board. All such communications shall be deemed given upon receipt. Any party may by notice in writing to the other parties change the address to which notices to it or him are to be addressed hereunder.