This excerpt taken from the PRVT 8-K filed Nov 3, 2009.
Section 13.3 Notice to Holders of Exchangeable Shares
Any notice, request or other communication to be given to a holder of Exchangeable Shares by or on behalf of Corporation shall be in writing and shall be valid and effective if given by mail (postage prepaid), by courier, by telecopy or facsimile, or personal delivery to the address of the holder recorded in the securities register of Corporation or, in the event of the address of any such holder not being so recorded, then at the last known address of such holder. Any such notice, request or other communication: (a) if given by mail, shall only be deemed to have been given and received on the third (3rd) Business Day following the date of mailing; (b)if given by courier, shall only be deemed to have been given and received one (1) day after deposit with a nationally recognized overnight courier, specifying next day delivery, (c) if given by telecopy or facsimile, shall only be deemed to have been given and received upon confirmation of such telecopy or facsimile transfer, and (d) if given by personal delivery, shall be deemed to have been given and received on the date of such personal delivery. Accidental failure or omission to give any notice, request or other communication to one or more holders of Exchangeable Shares shall not invalidate or otherwise alter or affect any action or proceeding to be or intended to be taken by Corporation.