In order for a player to receive the Gold reward for inviting Facebook friends, a few things must take place!
- The player must connect to Facebook inside the game.
- Friends must be invited.
- The invited friends must install the game.
- The invited friends must connect to Facebook inside the game.
Once all of this has occurred, you will be rewarded! Likely your invited friends either did not install the game, or did not connect to Facebook once they did install it. Ask them to verify!