(x) March 1, 2000, and (y) the use of the Service to manifest packages by at least [***]* MBE Centers (other than any such --- failure which is directly caused by an event of force majeure (as set forth in Section 18(e) [Force Majeure] or by the failure of the Service to operate in accordance with the Specifications or by the Company's breach of any of its obligations hereunder), or (B) MBE ceases to own at least [***]* shares of Source: STAMPS.COM INC, 10-Q, 11/14/2000 --- common stock of the Company (calculated on an as-converted basis and as adjusted for any stock split, stock dividend, recapitalization or similar transaction). (iv) Beginning 18 months after the Effective Date, MBE may, at its option, terminate the exclusivity provisions set forth in this Section 3(d) [Exclusivity] if (A) MBE and all MBE Centers together fail to ship at least [***]* --- packages manifested by the Service in any three (3) full month period ending 18 months after the Effective Date and (B) such failure to meet the volume requirements set forth above is related to the unsatisfactory performance of the Service as evidenced by written communications from a commercially significant number of MBE Centers. 4. Support; Training. ----------------- (a) Updates and Service Revisions. The Company will make Updates to the ----------------------------- Service in accordance with the requirements set forth in the Specifications at no charge for the entire term of this Agreement. Without limiting the foregoing, the Service shall be updated from time to time during the term of this Agreement to include accurate and current (i) Listings and (ii) pricing and service descriptions for each carrier supported by the Manifest, in each case as soon as reasonably practicable following the receipt by the Company of such Listings, pricing and service descriptions. As