HelloFresh Junior Backend Engineer interview questions

It was completely horrible, probably worse than horrible, couldn't be any more unpleasant than this. About 1.5 months ago I applied for Junior Backend Engineer position and after submitting my application I was quickly reached out by a recruiter to have a quick phone call about the details of the role, company and also my background. It was a very pleasant conversation and led me to have my second interview, which is a technical interview where I would be questioned more on my technical abilities, skills and projects. However this interview never took place. I was stood up by the interviewers not once, not twice, exactly three times. No joking or exaggeration, three times. First time I received an invitation to select a time slot for the interview, I did and waitied for the interview day however it got postponed to another date, which was completely fine by me back then. However when the interview day came, the interviever didn't even show up and bothered to inform me about what's going on. I immediately contacted the recruiter about the situation and they got back to me pretty late, after making me wait for so many hours, saying that they are very sorry for this and they'll reschedule the interview. This may still look very kind of them to some people however after arranging the same interview for the 3rd time, same thing happened AGAIN: Interviewer didn't show up, had to wait for hours to get a feedback from the recruiter, keeping me on the hook saying that they need to clarify somethings about their interview process before moving on with my application. At this point it was quite obvious to me that this application wouldn't go anywere. I lost all my hopes after being treated very disrespectfuly by them. About 1 month later, today I received an automated rejection mail from them saying they are not proceeding with my application. No further explanation, no feedback, nothing whatsoever. I believe nobody deserves to be treated by anyone like this, nothing can be a valid excuse for such an obnoxious treatment. Makes me lose hope on so many levels.