All Savers Supplement ASIC Members: Grievance Administrator. P.O. Box 31371. Salt Lake City, UT 84131-0371. Standard Fax: 1-801-478-5463. Expedited Fax: 1-866-654-6323. Phone: 1-800-291-2634. UnitedHealthcare Level Funded and UnitedHealthcare Oxford Level Funded Appeals Review. P.O. Box 31393. Salt Lake City, UT 84131.