If you bought something (premium account or gold) and didn't receive your purchase please try to log out of the game, close the game, and then log in again.
If these actions don't help you please leave us a ticket at http://support.rivalregions.com/support/tickets/new

Your profile id (nickname in the game) and screenshot of your purchase with purchase id (for Google Play purchases with id like GPA-XXXX…) are required.