Long View Systems Network Technical Architect interview questions

Shortly after applying for the role I have received an email from the recruiter regarding the companies interest in my application. The recruiter sent an email and asked to follow the provided link for the phone call. I have filled the form, picked the available proposed time and provided my phone number. Other than submitting the information I also send a confirmation to the recruiter regarding the time slot I've picked and the best number they can reach me at the moment since it could be different than number in the application. I have also asked if she would prefer an online meeting. No response. During the phone call day, i have sent reminder email if we were going to have a call at the same time if they have my correct number and whether she prefers to have a phone call or online meeting. I got swift response saying " Our call today is confirmed for 10.30am PDT. I will be calling you on the number provided in your application" I have not received any call at the booked time. After waiting 15 minutes I have send another email that I am waiting for a call and if they have tried to reach me out or not. No response. After 1 hour I sent another email to verify what has happened and still have not received any response. Very unprofessional, not organized and arrogant approach and hiring mechanism