(1) Where a notice, direction, or other document is authorised or required by or under this Act to be served on a person, it shall, unless otherwise specified in this Act, be addressed to him and served on or given to him in one of the following ways -

(a) where it is addressed to him by name, by delivering it to him;

(b) by leaving it at the address at which he ordinarily resides or, in a case in which an address for service has been furnished, at that address;

(c) by sending it by ordinary prepaid post addressed to him at the address at which he ordinarily resides or, in a case in which an address for service has been furnished, at that address; or

(d) in the case of an officer of a credit union, by sending it to him by ordinary prepaid post addressed to him at the address of the registered office of the credit union.

(2) Any such document may, in the case of a credit union, be served on the secretary of the credit union.