Behavioral Health Services North interview questions

One day after I applied for this position, I received a phone call for a brief telephone interview. It went well, and I was told that someone else would be reaching out to me soon to schedule a longer interview. About a week later, I had a missed call from someone else at this agency wanting to conduct a phone interview. Didn't I already do that? I called back and left a voicemail. No response. I called back again one week later and left another voicemail. No response. Very unprofessional.