There are two ways to claim your free Whopper. If you want to eat in, just sign in on the Burger King website we've linked to and click 'redeem in restaurant', then show the code at the counter. For click and collect, just sign in and click 'add to mobile order' then add a Whopper to your basket and checkout!
Please note, click and collect is at participating restaurants only.
Whopper Day only happens once a year so make sure you make the most of it and redeem your free lunch today!