Battle.net Currency

In order to add Gift Cards to your Battle.net account, follow the instructions below:
Go to www.battle.net/balance
Log in to your Battle.net Account.
Enter the code into the code redemption box.
You will see a confirmation message and the amount will be added to your Battle.net Balance funds shortly thereafter.
Check that your funds have been correctly added by looking at your balance in the top-right of your account management screen.

Battle. net Balance is an electronic balance players can use to purchase Blizzard Entertainment games and services. Have you ever wanted to give a friend a few Hearthstone Expert Card Packs? Or gift that epic Iron Skyreaver mount to your World of Warcraft guildmate? Good news! We’ve got you covered with one simple solution — the Battle. net Balance Card Note: To ensure the security of every Battle. net Balance transaction, there may be a delay before Battle. net Balance becomes available for use. Credit card purchases may take up to 3 days to process. Direct debit users can use PayPal as an alternative method of payment.