All crystals for completing missions and achievements are added to your account automatically the moment the task is complete. If you've purchased the required number of units, the crystals will be added immediately when the indicated number of units (100, 1000, etc.) has finished its construction - even if you are not currently playing or are logged out. When you log back in, you'll get a "Task complete" message and the crystals will have been added to your Bank balance.
If after checking your purchases you are 100% sure there has been an error and the crystals have failed to add, please contact our Support Team.
If after checking your purchases you are 100% sure there has been an error and the crystals have failed to add, please contact our Support Team.