Certificate of service or notification
28.—(1) If the court so directs, a certificate of service showing where, when, how and by whom service was effected shall be filed as soon as practicable after service of a document has been effected in accordance with these Rules.
(2) The provisions of paragraph (1) of this rule shall apply to the giving of notification under rules 26 and 27 as they apply to the service of documents and references in that paragraph to service and the effecting of service shall accordingly be construed as including references to notification and the giving of notification respectively.