Change Healthcare Project Coordinator/Provider Onboarding interview questions

Conducted a phone interview with the recruiter. Received an email the same day in regards to a face to face interview with the HM(Bridgeton MO Office). Interview went very well. The HM even made a comment during the interview that based on my qualifications I may even qualify for another position that they had an opening for (Intake Supervisor). After the interview I was told by the hiring manager that I would hear something real soon as they were looking to move forward really quick as the training class would be starting on 29th April 2019. I never heard back from the recruiter or the HM manager that is despite making several attempts to reach out to the recruiter/HM. In my opinion this is highly unprofessional and unethical. HR should look into on how this was handled.