5. A notice or other document that is required to be served on or given to a person under this Act shall be addressed to the person concerned by name, and may be so served on or given to the person in one of the following ways:

(a) by delivering it to the person;

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

(c) by sending it by post in a prepaid registered letter to the address at which the person ordinarily resides or, in a case in which an address for service has been furnished, to that address.