How to activate the codes:
1- Log in to the Epic Games website through hands or from Epic or Xbox via the link:
https://accounts.epicgames.com/login
2- After logging in, go to this link:
https://www.epicgames.com/fortnite/en-US/redeem
Put the code in the box
3- Then click Recover
4- Then click Activate
5- Congratulations, you have successfully activated