Capital One bank Customer Service Phone Numbers Customer service: 1-888-810-4013 Capital One bank Credit card support: 1-800-695-5500 Auto Insurance Services, Inc: 1-800-946-0332 Small Business Online Banking Support: 1-800-867-0904 Capital One bank Term Life Insurance Services, Inc: Privacy Assist: 1-877-442-3764 Online Banking/Bill Pay: Online Banking: 1-877-442-3764 Secured Card:1-800-219-7931 Fraud Protection: 1-800-427-9428, 1-800-239-7054 Report death of a cardholder: 1-877-357-5659