1.1 Entry 1: Go to Banking menu, select Credit Card icon and select your Credit card
1.2 Entry 2: Go to Banking menu, swipe to the right to Credit card page, select Card Settings
1.3 Entry 3: Go to Settings menu, select Account/Card Settings, select your Credit card from My Accounts/Cards list
3. Confirm to Lock/Unlock Credit card
4. Successfully Locked/Unlocked Credit Card