Merchant cards (displayed as blue or with merchant branding on your account):
- Merchant cards can be used as many times as you’d like with the same merchant.
- They lock to the first merchant they are authorized with and cannot be used with any other merchants.This ensures that a breach at one merchant doesn't put you at risk across the internet.
Single-use cards (displayed as red on your account):
- Single-use cards automatically close 2 minutes after your first charge completes.
- Worried the merchant you’re paying might try to sneak some hidden fees past you? Don’t trust them to cancel your “free” trial? Single-use cards are great because once this card automatically closes after the first transaction it cannot be used again.
When you create a card, it defaults to a merchant card. To change a card to single-use, click on "Spend Limit" then toggle the "Single-use" option.