tokens: All notices required hereunder shall be given by ( a ) telephone ( confirmed in writing if the sender on the same day sends a confirming copy of such notice by reputable overnight delivery service ( charges prepaid )) or shall be in writing and personally delivered , ( b ) facsimile transmission or e - mail if the sender on the same day sends a confirming copy of such notice by reputable overnight delivery service ( charges prepaid ), ( c ) reputable overnight delivery 11 service ( charges prepaid ) or ( d ) certified United States mail , postage prepaid return receipt requested , and addressed to the respective parties at their addresses set forth in the Master Venture Agreement , or at such other address as any party shall hereafter inform the other party by written notice given as aforesaid .