No fee may be charged to the applicant in any proceeding under this Act except as provided in this Act. If the applicant is represented by counsel or some other duly authorized agent in making application under this Act or in any further proceedings provided for in this Act, that counsel or agent may receive no payment for his or her services in preparing or presenting the application before the Court of Claims or the Attorney General. He or she may, however, charge fees to the applicant for representing him or her at a hearing provided for in this Act but only in such an amount as the Court of Claims or the Attorney General determines to be reasonable.