Now its come to light that the Android edition of the game actively prevents users from leaving a star rating less than the maximum five on the Google Play store.

When a user is prompted to leave a rating two options are presented (pictured above). The user can either leave a five-star review - which will be published on the Google Play store - or a 1-4 star rating, which asks the user to send feedback directly to EA via email.

While users can rate the game on Google Play if they manually seek it out on the store, the game will not link those intending to rate the game less than five stars from inside the app.

IIRC you can leave a review directly on the Play store.