Initial screening interview, followed by a HireVue video interviewing with 4 Analytical questions to reply within short time. After that an extra interview with the hiring manager, and after that they forgot to come back with any feedback (neither positive , nor negative, like as if the interviews never happened)...

I was contacted by HR, which was followed by a subsequent interview with potential line manager. I also had to do a case study. Got very little feedback and the whole process took ages. The case study was poorly structured and formulated. I would have expected the company to want to have a face to face interview to get to know me as a person, which did not happen. Queries on what to achieve out of the case study remained unanswered as well. At the end all I was told was they were not going to proceed further without giving me any insight into why. Utterly shambolic and unprofessional.