Why i did not receive Flight Coins ?

First question: Do you have an active account and fly with MetaFlight Flight Tracker? 

If yes, then check that you haven't launched your flight during your rest period. 

As a reminder, your flight will not be remunerated during a mandatory rest period. 

If, during this rest period, you decide to start a flight, your flight counter will not taken into account and will not deducted from your monthly flight hours, but your flight will not be remunerated in Flight Coin. 

If you think that all these points have been checked correctly, and you need technical support, then open a support ticket.

Follow these instructions to open your ticket: How to raise a support ticket?