The Free Orbs Tab is the tab with missions in other games and apps. The player who completes these missions can get orbs in King of Thieves. If this option is available, it will be visible in the in-game store (called "Free") and in the corner of the screen, where the Event icons are usually located.
 

Clicking on this tab will take the player to a window with the available offers.

Reasons why the player may not receive the reward:

1. The mission requirements have not been met.

2. Identical offers in the same game

If you complete a mission in the same game, you can only receive the reward for the last offer you accepted.

3. Server delays
The problem may occur on the side of an external system that confirms that the conditions for receiving the reward have been met.