Contact Information. Telephone: For Customer Service including activation of your card call Bank of America Cardholder Services toll free 24 hours a day, 7 days. Lost or stolen card? Notify us immediately by signing in to Online Banking or calling us: For credit card issues: 1. Online There are several ways to make payments to your Bank of America credit card in Online Banking. · 2. ATM Credit Card Payments · 3. Pay by phone · 4.