30.— A notice that is required to be sent or given to a person under this Act may be sent or given to the person in one of the following ways:

(a) by delivering it to the person;

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

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