please start a new thread or move this thread to reputation, do not complain about the whole system gang bullshit because it's not going to do you any good.

complain about Alex's feedback on your profile , present your facts, let him present his. if the community feels that you are innocent they will either advise alex to remove his rating or counter it with positive feedback.

you do not need to be fluent in English, just tell us why do you think Alex gave you a wrong feedback.