Complete this form to provide ORS with the information needed to open a child support services case. This form can also be completed online.Salt Lake City, Utah 84116. Child Support Contact Info. 1. Schedule a call with Admissions. The Mail Recovery Center (MRC) is the US Postal Service's official "lost and found" department for undeliverable and non-returnable mail. This page explains how to ask the court to enforce an existing order or decree from a Utah court. If you are in the Salt Lake City calling area, dial 801-364-0777 x101. If you are outside the Salt Lake City calling area, dial 1-800-364-6445 x101 (toll free). Please call us at 1-800-227-2345 to learn additional eligibility criteria.