21. (1) A candidate may appoint a person qualified to be elected as a member to be his election agent. (2) The appointment of an election agent may, at any time, be revoked in writing by the candidate and, when it is so revoked or the election agent dies, another person may be appointed by the candidate to be his election agent. (3) When an election agent is appointed, the candidate shall send to the Returning Officer a notice in writing of the appointment containing the name, father's name and address of the election agent. (4) Where no appointment of an election agent is made under this section, a candidate shall be deemed to be his own election agent and shall so far as the circumstances permit, be subject to the provisions of this Order both as a candidate and as an election agent.