Deloitte Data Scientist interview questions

I received a call shortly after applying online around October 2018, I got sent an email assessment relating to machine learning in December 2018. Once I passes this stage, I was invited for face-to-face interview in January 2019. It was in two sessions, one session was about technical skills regarding machine learning concepts. The second session proceeded to ask about more technical things like databases and personality type questions. I was told that I will get a feedback in three days time. I didn't get any feedback for over a month. I kept calling and trying to get an outcome. After about 2 months of constant calling, the contact person in HR said, they are likely going with someone else. I never got an official response from Deloitte till date. I don't think that is professional considering the time and travel expenses put into the interview, getting a feedback and on time would have been the right thing to do.

One hour long interview with a partner going over past experience and projects. Some basic ML and data science questions but did not include a whiteboard test. Also involved a basic screen on some basic skills.