When you're ready to check out, click on the shopping bag icon in the top right corner and click 'Checkout'. Click into the Order Summary section and enter your code underneath the "Apply A Promo Code" section. Just make sure you’re following the promotional T&Cs, which you can view on the relevant links provided at the bottom of this article.
Please note: You can only enter the promotional code in once. Be sure to only enter the promotional code once you are ready to checkout.
New Zealand: https://www.citybeach.com/nz/promotional-terms-and-conditions.html
United States: https://www.citybeach.com/us/promotional-terms-and-conditions.html
United Kingdom: https://www.citybeach.com/eu/promotional-terms-and-conditions.html