didnt get her credits

so my wife finished getting her dailies today, finishing her weekly, but when she checked to see how many credits she got it said that she got one. Not only did she finish both the daily and the weekly but one of her commendations ranked up. Does anyone know why she didnt get her credits? she finished the first lvl of the campaign to kill the enemy with the automatic fire. Her gamer tag is ElvishTurtle851