As a security guard, I was fired for no reason. What number should I call to complain?

Without this complaint phone number, even if you complain that they fired you "for no reason", do you have any evidence? Prove that they really "fired" you for no reason, and they will certainly produce a lot of "perjury" against you, saying that you are late, dozing off, being late for work for no reason, etc., and the regulatory authorities have nothing to say. After all, they will trust the company and won't believe your word, unless many colleagues prove that you haven't made any mistakes and the company fires you for no reason. It still is, but now. Be careful next time, the powerful can't afford to offend.