Rubicon IT interview questions

Discriminating people, based on the nationality. I have applied 2, 3 times for an Product Owner position, all the time answer that the position is already taken without taking my application into consideration. Now I have got even explanation that my number is not written in my CV and they couldn`t reach me which is not true. So they didn`t even tried to reach me on my email, but for rejecting and discrimination then it`s not a problem to write on my email. What a people!