Did two rounds one with recruiter the other with the team. Second interview involved a case study where you had to choose a project you'd invest in on their site

I got a phone call out of the blue, I was not even asked if it was a good time to speak. This was not scheduled in my diary or organised. Then the interviewer got cross when I was unprepared for the interview. Seriously terrible practice absolutely shocking. Well glad this happened and I do not need to join a badly run company