If you would like to redeem your free item from the CoinGecko Store, select your item on https://store.coingecko.com/ and then Add to Cart.
Once done, click on View Cart.
Proceed to click the Check Out button at the bottom.
You can now apply the Discount Code on the right side of your screen.
For digital products, shipping and billing addresses are optional. Feel free to key in "1" or "a" to move forward with the next steps. Your digital download link will be emailed to you.
For physical products, your shipping address is a requirement.