Service of documents
18.—(1)  Unless otherwise expressly provided in these By-laws, a notice or document required by these By-laws to be given to or served on a person may be given to or served on the person —
(a)by delivering the notice or document to the person or to an adult member or employee of the person’s family or household at the person’s usual or last known place of residence;
(b)by leaving the notice or document at the person’s usual or last known place of residence or place of business in an envelope addressed to the person;
(c)by sending the notice or document by registered post addressed to the person at the person’s usual or last known place of residence or place of business; or
(d)in the case of an incorporated company, a partnership or a body of persons —
(i)by delivering the notice or document to the secretary or other like officer of the company, partnership or body of persons at its registered office or principal place of business; or
(ii)by sending the notice or document by registered post addressed to the company, partnership or body of persons at its registered office or principal place of business.
(2)  A notice or document sent by registered post to a person in accordance with paragraph (1) is deemed to be duly served on the person at the time when the notice or document would in the ordinary course of post be delivered and, in proving service of the notice or document, it is sufficient to prove that the envelope containing the same was properly addressed, stamped and posted by registered post.