Zep Compound Mixer interview questions

Applied online, got called the next day. Supposed to interview with HR person and Production Manager, Production Manager didn't show up. We rescheduled so I could meet the Production manager, I took off work early sacrificing pay, and went to the interview. The waiting area has no receptionist, you call a number for your party and they let you through the door. I called multiple numbers for the HR person, multiple times, no answer. I waited for an hour and 15 minutes before I had to leave. Sent the HR person an email explaining nicely that I had to leave, and I never heard another word from them. Hey, just tell me if you don't want to hire me, ya know?