Maxcess International interview questions

1- Initial interview with recruiter online 2- Second interview with local manager remotely 3- Onsite meeting with an 1 hour interview with the CEO and 1 hour of practical test. After that another but distensive and informal meeting with the CEO along with plant tour

I was contacted by HR to arrange an interview. I arrived for the interview and spoke with the department head the interview lasted for over an hour that included and interview with another Field Service expert who briefly tested my technical ability which went well. I met again briefly with the department head. I was also to meet with the HR person who was not available for the interview process. No retun call or email even after I called. VERY UNPROFESSIONAL.