The bonus has just been doubled. From today until December 23, 2013 (11:59 PM), you can now get 20% Cash Bonus whenever you top up. Check the table below:
How to load up in the game:
1. Go to the SHOP tab and then click the “Cash Change” button
2. Enter your Grand Chase username twice.
3. Enter the card number and card pin then click LOAD UP! button.
4. Click another tab (example Equip tab) and click Shop tab again to reflect the updated Cash points.