(1) Any notice which under this Act is required or authorised to be given by an employer to an employee may be given by being delivered to the employee, or left for him at his usual or last-known place of residence, or sent by post addressed to him at that place.
(2) Any notice which under this Act is required or authorised to be given by an employee to an employer may be given either by the employee himself or by a person authorised by him to act on his behalf, and, whether given by or on behalf of the employee, -
(a) may be given by being delivered to the employer, or sent by post addressed to him at the place where the employee is or was employed by him, or
(b) if arrangements in that behalf have been made by the employer, may be given by being delivered to a person designated by the employer in pursuance of the arrangements, or left for such a person at a place so designated, or sent by post to such a person at an address so designated.
(3) In this section reference to the delivery
…