To lock your Douugh Card to control spending and card use just follow these steps:
Log in to Douugh.
Tap on 'Spend Jar’.
Tap on 'Account'.
Swipe down to the lock/unlock tab and tap the lock toggle.
You can return here any time to tap again to unlock the card.
If your card has been locked/unlocked and you're using it in a digital wallet, you may need to re-add it. Don't forget to delete the card from your digital wallet before re-adding it (even if it is the same card details you end up re-adding).
If you need a hand with this, check out the following guide:
And if you need some support with some unexpected or unauthorised transactions, check out this guide: