(1) A person who has disputed the person's liability for a toll in accordance with the dispute resolution procedure referred to in section 20 and who is not satisfied with the outcome of that procedure may, on one or more of the grounds referred to in section 19, appeal the person's liability for that toll to an arbitrator
(a) in accordance with the appeal procedure prescribed for the concession highway, or
(b) if no appeal procedure has been prescribed as referred to in paragraph (a) for the concession highway, in accordance with the appeal procedure established in accordance with the concession agreement for the highway.
(2) On an appeal under this section, the arbitrator may make any order the arbitrator considers appropriate including, without limiting this,
(a) an order that the person to whom the invoice was issued is liable to pay none, some or all of the amount invoiced, and
(b) an order that the concessionaire or billing organization repay to the person to whom the invoice was issued some or all of the money provided by that person to the concessionaire or billing organization.
(3) The decision of an arbitrator under the appeal procedure referred to in subsection (1) is binding on the parties and may not be appealed to any court.