DECIEM Compounding Manager interview questions

I was contacted for an interview through email and after scheduling my interview through their portal, I received an invitation to my interview. But on the day of my interview, the interviewer didn't show up. I then emailed the interviewer asking if everything is okay and if the interview needs to be rescheduled. I still didn't get a reply to date. This is absolutely unprofessional and I just can't believe a company this level would do something unprofessional like this. I'm very disappointed and would never apply to Deciem again.