Sorry to hear this was your experience. While it is literary impossible for us to respond to each and every applicant in the initial stages of recruitment, we do make an effort to get back to every candidate who has invested time working on and presenting a case study. Usually if you have reached this stage, you have been shortlisted and your chances of landing the job are high. It would be important that we give feedback on the results of your case study presentation. If this was what happened at your end, then this shouldn't have been the case and we are sorry for having you go through this. Also, if I were you, I wouldn't shy away from calling to ask for feedback. But thank you for highlight this for us. We will monitor this closely in the future.