Please Note: Purchases of gift cards have a 14 day refund period, from date of receipt, after which they are non-refundable. Just Eat will not be able to refund gift cards which have been credited to a Just Eat account. Refunded gift cards will be cancelled and the gift card will be held to be void.
For full terms and conditions see: https://www.just-eat.co.uk/info/terms-and-conditions

Please note that credit will be applied directly to your account on redemption. This credit will be automatically used at checkout unless you untick the box. If you attempt to add it again once you have added it, you will receive an ‘invalid’ error message.

Head to just-eat.co.uk and login. If you are new you can sign up.
Click the icon in the corner of your screen and hit Redeem a gift card
Pop in your gift card code to add the gift card value to your account.
Order on our website or download the app, and we will deliver your food straight to your door