1. Click on the appropriate package.
2. Provide your Clash of Clans username and click on the Start button.
3. After a few seconds, you will be redirected to a webpage.
4. You will see the best and the easiest offers according to your country. When you participate in any of these offers, gems will be sent to your account automatically! (Offers include signing up, SMS confirmation, e-mail submission, taking part in surveys etc.)