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Customer Service - 855-660-5862 Online and Mobile Banking - 888-588-2623 To contact a First Financial Bank customer service representative, call toll-free 855-660-5862.
Call toll-free: 1-800-733-1732. You have access to your account information anytime using our 24-hour automated telephone system. Customer Service representatives are available by telephone, Monday through Friday, 8:00 am to 8:00 pm CT and Saturday 8:00 am to 5:00 pm CT excluding Federal holidays. Call collect from outside the U.S. 1-605-232-3058. By Mail. General Inquiries - Credit Card Account 1st Financial Bank USA Credit Card Service Center P.O. Box 1200