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Phone: (800) 252-9743
Phone: (800) 222-6297
Fax: (512) 219-4739
Hours: Monday – Thursday, 8 a.m. to 8 p.m. Central Time, Friday, 8 a.m. to 5 p.m. Central Time
Make payments online through the myTrellisSM portal, or mail checks to:
P.O. Box 659602
San Antonio, TX 78265-9602