Zions bank Customer Service Phone Numbers Customer Service: 800-974-8800 Menu Options Local: 801-974-8800 Online Banking and Bill Pay Enrollment and Support:800-840-4999 Online Banking Password Resets:800-840-4999 Quicken® and Quickbooks™ Support:800-840-4999 Help Opening an Account:866-761-8349 Credit and Debit Card Support:888-758-5349 Existing Loan Customer Service:801-974-3900 Assistance Applying for a Personal Loan:800-789-5626 Media Relations:801-844-7979 zions bank Headquarters Info, Email, Phone