Users can only lock or unlock ATM, debit, or credit cards when they are in an active state. Cards in a shipped state cannot be locked or unlocked.
To lock a card and instantly block card usage:
On the web app, select Tools > Cards, or under the name menu, select Settings > Cards.
On the mobile app, select More > Cards.
On the page that appears, the user’s available cards display. On the web app, select Manage, and in the side panel that appears, select the Lock card toggle.
On the mobile app, select a card, then Lock card.
The card appears locked on the panel and the card list.
Unlock a Card
To instantly unlock a card on the web app, from the Cards page, select Manage > Unlock card.
On the mobile app, select More > Cards > select a card > Unlock card.