Chase Bank Сustomer Service Financing & BankingChase Bank Phone: 1-800-432-3117 (Credit cards) 1-800-487-4404 (Student loans) 1-800-935-9935 (Personal banking) 1-800-336-6675 (Auto finance) 1-888-e4CHASE (Loans) 1-800-242-7338 (Business banking) 1-800-848-9136 (Mortgage loans) Additional Phone Numbers...