Disable adblock if you use one (Recommended)
Step 1: Click on the link provided http://tunnel.guru/promo/
Step 2: Click on Follow @TunnelguruVPN button to follow.
Step 3: It will be redirected to next page where you need to Tweet in your own Timeline about TunnelguruVPN. ( with predefine message)
Step 4: You will be redirected to Activation page. Free account will be activated within a second.
Congratulations you have activated 3 GB monthly free data