Go to the Epic Games website and open the login panel.
Log in to your account.
Go to account settings and select Germany as region. Warning! The change applies only to new accounts, on which no transactions have been made yet.
Log in to the Fortnite game client.
Choose the amount of V-Bucks.
Choose PaySafeCard as the payment method.
Enter the code obtained in Gamehag at the designated place and enjoy the free V-Bucks!