How to redeem your V-Bucks card PIN: 

1. Go to https://www.fortnite.com/
2. Log in to your Epic Games account where you want to redeem your code if you are not logged in already
3. Hover your mouse over your name in the top right corner and click V-Bucks Card
4. Click Get Started to begin the redemption process
5. Scratch off the back of your V-Bucks card and enter your PIN code with no dashes
6. Select the platform you want to redeem the V-Bucks Card on