How to use ? :How to redeem Fortnite cards:
1- Click on the link: ( https://www.epicgames.com/store/en/?lang=en )
2- Log in with your account on one of the devices.
3- Link your account by clicking on “Links” and then “Accounts”.
4- After linking, click on the link: ( https://www.epicgames.com/fortnite/en/vbuckscard?lang=en )
5- Type the code in the box, and then choose your device.
6- After the process is completed, you will be given a code to enter it in the store of your device.