s 12 Service by post
Where a written law authorizes or requires a document to be served by post, then, until the contrary is proved, service— (a) shall be presumed to be effected by properly addressing, prepaying and posting by registered post a letter containing the document; and (b) shall be presumed to have been effected at the time when the letter would have been delivered in the ordinary course of the post. DIVISION TWO Provisions Affecting Written Laws Generally