There is an interesting feature in the game - Notifications!

Players now can be always informed and have up-to-date information about the in-game actions. With the turned on notifications, no more diamonds, completed orders, new phone orders, and more will not be missed. Also, players can decide what notifications they want to receive on their own.

To turn on the notifications in the game, go to Menu ➡ Notifications and activate all of them, or just the one you need.
After that, the game will ask the player to turn on the notifications in the device settings. That's it; income or events in the game will not be missed!

If you do not receive the notifications, go to the device settings and make sure that the notifications from the game are turned on.