Step 1: Share this page on your favorite social network (Facebook, Pinterest, Twitter or Google+) using the buttons from the bottom of the page.
Step 2: Click here and complete a quick survey to prove you're not a bot.
Step 3 (optional): Leave a positive comment.
By skipping any step you won't get your free Hearthstone code with 4000 Gold.
After you have the code follow the instructions to redeem the gold:
1. Go Battle.net website and sign in
2. Click on "Account" link
3. Click on "Games & Codes" and "Code Redemption"
4. Enter the code you received and click "REDEEM CODE"