Informatica interview questions

I applied for the job online awhile back, and in early September I got an automated message informing to schedule a time frame to speak with a recruiter. I set up an appointment, studied, and the recruiter didn't even bother calling me or updating me. I emailed her to see if she was still available or would like to reschedule, and she still didn't bother replying. I have never encountered a company with such unprofessional recruiters. They don't seem to have problem with wasting a candidate's time. If you get an automated message, don't bother booking an appointment because you may not hear back. Save yourself from the annoyance.