I had an interview session, but the interviewer didn't join, nor cancel, nor follow-up

You are a number in a big company, they ignore you when they don't need you. Like they didn't join the session, didn't cancel it, and didn't follow-up as to why that happened. You are helping innovate customer support, but why don't you use a simple cancellation for interviews, it is not just 30mins meetings, it is searching, preparation, stress and pressure during a week or weeks, and then you simply ignore, without noticing the candidate.