I had 3 interviews for their company within one week, they all gave great feedback and made it seem like they were very interested. I was told they would get back to me after a few days and I left a voicemail with the recruiter thanking them for their time/to let me know about the situation either way. Weeks went by and I called and asked for an update, but they never got back to me. I feel like it is very unprofessional not to let someone know either way after meeting with the whole HR team several times. It is common courtesy to let someone know the role has been filled.