Exactly, you got it. Most times these companies don't take interviews for hiring, they just market themselves by posting fake jobs vacancies. Most time there interviewers are mentally sick people & don't like to take any capable person by asking sensible questions. These interviewers are still living in their College Viva days & take the interviews in that manner only. And even if they find you more capable then they will reject you to keep their jobs safe. So in all these scenarios, you will never get the reason about why your application was rejected or why your interview result is not positive because the fake or biased reasons are not made public.