In the investigation and determination of the right of persons to participate in the disabled workers' relief fund, the executive director has and may exercise all the powers which he or she possesses under the other articles of this chapter. His or her powers and jurisdiction over each case is continuing, but there shall be no appeal from the commission's decisions to any other body or tribunal. No attorney, representative or agent of any claimant or participant is entitled to charge or receive a fee or compensation or gratuity in any form for representing or assisting or pretending to represent or assist any person to become a participant in the disabled workers' relief fund.