To report an unauthorized purchase made with your debit card, please complete our ATM/Debit Card Fraud form and drop it off at your nearest CU SoCal branch, mail it to 8101 E. Kaiser Blvd, Suite 300 Anaheim, CA 92808-2261, or fax it to us at 714.990.5492. In addition, if you debit card has been lost or stolen, please call: 888.698.7241.