(1) Any notice required to be served under the preceding regulation shall be in writing.
(2) Any such notice may be served either—
(a) by delivering it to the person on whom it is to be served;
(b) by leaving it at the usual or last known place of abode of that person; or
(c) in a case where it is to be served on a body corporate, by delivering it to the secretary or clerk thereof at the registered or principal office thereof.