Whenever the Commissioner finds after investigation that an organizer, solicitor, or agent of a medical service corporation has unfairly or improperly solicited subscription certificates by misrepresenting the terms thereof or has engaged in any other unfair or deceptive practice or for any reason is incompetent to serve as an organizer, agent, or solicitor or that his services are not, in fact, needed, he shall order the medical service corporation to dispense with the services.