I use the free nepgax4o trainer, i just got to 1º division today, i was in second myself and i started using it today.
I started playing on first div, and suddendly this happened:
I even played and won a normal game, without using the trainer, i won it and the same thing happened.
I recently stopped sharing statistics with EA and started playing on window mode, i dont know why this is happening, i'll keep trying things and updating
EDIT: Not only on season, on online normal matches too