Huawei Technologies Solution interview questions

The worst experience in my professional life! 2 2hours-long interviews, speaking with 5 different persons (2 technician, 1 PM, 1 program manager, 1 "super" manager..). I replied to any question in very professional way, I think, even to a techinical questionnaire to be filled alone in a room in 20 minutes... The bottom level has been reached with that "super" manager who started talking about the chinese working culture which the best in the world and the hardest one...bla bla....then 3 weeks without any feedback from them despite my calls and emails. At the end the send me their own proposal: "are you ok joining us as consultant, going through a consultancy company?". I replyed with a diplomatic "No, thanks. you are not seriuos".