I received an email asking to schedule an interview as soon as possible. I replied and called back within 2 hours and didn’t hear back, even after leaving a message. I tried calling 2 more times, and finally after 2 weeks, I emailed back the same email asking if the position had closed and I got a message saying the email account had blocked me. I’ve encountered a lot of unprofessionalism but this was top tier. If there was a mistake I would much rather have been communicated with than ghosted and eventually blocked.