13.—(1) Any notice, notification, copy of any order or any other document required to be given to any person under the provisions of rule 5(2), 6(4), (5) and (7), 8(3), 10(5)-(7), 11 or 12 may be given by ordinary first class post to his last known address.
(2) A notice under rule 10(1) shall be served in accordance with section 24(2) of the Interpretation Act (Northern Ireland) 1954(1).