If the Arkansas Department of Transportation order is not issued before the expiration of the period of suspension, the filed rates shall remain subject to refund as provided in § 23-4-630, but the applicant utility shall have the right to petition the Pulaski County Circuit Court for a writ of mandamus compelling the issuance of an order by the department within fifteen (15) days of the writ of mandamus issued by the Pulaski County Circuit Court. The petition shall be advanced on the docket above all other pending civil cases, and a hearing thereon shall be held within seven (7) days of the filing of the petition. The scope of review shall be limited to the issue of the failure of the department to act within the time limits provided for in this act.