Coalfire Associate Penetration Tester - FedRAMP interview questions

I found the position on LinkedIn and applied through Coalfire's website. About a week later I had a call lined up. It seemed to go very well and I was told that my information was going to be passed on to some Directors and some further calls would be lined up. I never heard anything further from Coalfire and my phone calls were not returned. No "Thanks, but no thanks" or anything. Very unprofessional and disheartening to be treated this way. If you're going to take the time to interview someone, please at least have the courtesy to let them know if you're not going to proceed with them instead of leaving them hanging.