All notices, requests, demands and other communications called for or contemplated hereunder shall be in writing and shall be deemed to have been duly given (i) if delivered personally, upon delivery, (ii) if delivered by facsimile, upon facsimile confirmation, (iii) if delivered by mail, upon the date of delivery shown in the return receipt (or if none shown, five (5) days after deposit in the mail) when placed in the United States mails and forwarded by registered or certified mail, return receipt requested, postage prepaid, and (iv) if delivered by overnight courier, one day after being sent to the recipient by reputable overnight courier service (charges prepaid), each addressed to the party to whom notice is being given at the addresses set forth herein or such other address as may be subsequently designated in writing.