Basalite Concrete Products interview questions

I first received a phone call with the HR Manager and did a mini phone interview. I was then asked to come in for the in person interview. The interview was great. The Supervisor was very informative and organized. I found it very unprofessional that even after I sent a thank you for the interview and another status check in email that they never provided a response. It would have been courteous to send an auto- reply email that they had filled and closed the position. She asked valid questions and was genuinely interested in my responses.