Except as provided in Section 40-4A-4.1 N.M. Stat. Ann., the obligor may contest the notice to withhold income by filing a petition with the clerk of the district court within twenty days after service of the notice of delinquency. Grounds for the contest shall be limited to a dispute concerning the existence or amount of the delinquency or noncompliance with the Support Enforcement Act. The clerk of the district court shall notify the obligor and the obligee or public office, as appropriate, of the time and place of the hearing on the petition. The court shall hold the hearing pursuant to the provisions of Section 40-4A-9 N.M. Stat. Ann..