(A) A nonregistering party seeking to contest the validity or enforcement of a registered order must request a hearing within twenty days after the date of mailing or personal service of notice of the registration. The nonregistering party may seek to vacate the registration or to contest any aspect of the registered order, the remedies being sought, or the amount of any alleged arrearage pursuant to Section 20-7-1144.
(B) If the nonregistering party fails to contest the validity or enforcement of the registered order in a timely manner, the order is confirmed by operation of law.
(C) If a nonregistering party requests a hearing to contest the validity or enforcement of the registered order, the registering tribunal shall schedule the matter for hearing and give notice to the parties by first-class mail of the date, time, and place of the hearing.