Just an advice if you don't want to get ban : score a goal in your own goal before using the trainer.
Like that you and your opponent have the win and there is small chance that your opponent report you.
If you don't do that your opponent risk to report you to EA and if EA receive a lot of report on one player they check his behavior and ban if is necessary.
If nobody report you and if you use the trainer reasonably you wont get banned.