You have two options for redeeming your Battle.net gift card:
Redeem your Battle.net gift card by going directly to Blizzard.com/code.
Enter the 19-digit code we sent to your email.
Log in to your Blizzard Account.
Go to Account Settings.
Select Payment Methods.
Click on Redeem a Code, and enter the 19-digit code we sent to your email.
Also known as a Blizzard gift card, a Battle.net card allows you to purchase games from Battle.net. Titles like World of Warcraft, Overwatch, Call of Duty, and Diablo III are just a few of the awesome games to buy.
To redeem your Battle.net code, you will need a Battle.net account corresponding with the currency of choice. If you purchase a EUR Blizzard code, you will need a European account.
Your Battle.net code is valid 1 year after purchase!
Follow the link to contact Battle.net customer service.