Mother could not file writ of mandamus in juvenile court following reversal of juvenile court’s orders without first exhausting administrative remedies. The appellate court reversed a jurisdictional/dispositional order that had sustained allegations of a petition filed pursuant to section 300. After the remittitur issued, mother filed a motion in the juvenile court to seek an order directing the Agency to change its finding on a child abuse report from substantiated to unfounded and remove mother’s name from the Child Abuse Central Index. The juvenile court treated the motion as a writ of mandamus, and denied the motion on the grounds that mother had failed to exhaust administrative remedies. The appellate court affirmed the juvenile court’s order. When mother filed her motion, she had not commenced grievance procedures with the Department and had therefore not exhausted her administrative remedies. Further, the appellate court’s order reversing the jurisdictional/dispositional order meant that the juvenile court did not have jurisdiction over the minor. Therefore, the juvenile court did not even have jurisdiction over mother’s motion.