You may contact GCSC via the Contact Form. Enter your name, email address, and comments. Or You can write to: GCSC, P.O. Box 862, Danville, CA 94526 or call (925)820-0500, and someone from GCSC will contact you. 請寄信到: GCSC, P.O. Box 862, Danville, CA 94526 或電話 (925)820-0500, 康鶴耆英中心將會有人與您連絡.