Zebra Technologies Data Science Intern interview questions

They have set an hour and half for my interview. I will write about it soon. I have reschedulaed it so far; they were flexible. The time of interview is long

HR organized the interview with couple of senior folks. They start by explaining about their project and then basically go through the resume and ask simple questions. The interview process was good, friendly interviewers who are experienced in their field. My issue is with the HR. I sent a thank you note after the interview to HR to pass on feedback to the interviewers since the interviewers did not share their email id. There is no response from HR for a week. I reply to same email after a week, still no response from the HR. This is probably the most unprofessional HR. No courtesy email, no status update. God bless the intern who gets in this company.