HOW TO ACTIVATE A BLIZZARD.NET KEY
1.In order to activate your Game Key, go to Blizzard and Sign In to your account.
2. Click your email address from the upper right corner, and select ‘Account Settings’.
3. In the Account settings page, on the menu on the left select ‘Account Overview’.
4. Paste your Game Key in the designated area and click the ‘Redeem Code’ button