SupWiz interview questions

A SupWiz employee reached out to me and pursued me to apply, as they claimed I seem to be an ideal candidate for them. I did apply and I soon had an interview, where the interviewer was a bit inexperienced, but generally nice. A little while later I also got an invitation for a second round. At the end of the interview I was told they have to talk to everybody, so I should expect an answer in 3-4 weeks, which is quite long, but I accepted it. I unfortunately never heard from them again, only after I wrote an email asking about the result. Even though they reached out to me to apply, they did not bother to send a rejection email afterwards

1st interview was a 20 min digital interview, where no info about the job or organization was provided. 2nd interview was 30 min long and a repetition of the first one since all previous provided information was forgotten due to a high number of interviewed candidates and bad preparation. Afterwards I was, by a mistake, sent an email correspondence where a employee expresses her irritation that I asked two questions about another position 6 months prior to the interview. Afterwards, I received a rejection which was a standard email like the ones you sent out to applicants which did not even make it to the first stage (I made it to the 2nd interview). When I expressed my surprise about the standard email, I was spoken down to and lectured like a child. They have no professional HR-people employed and questions about positions (even C-level positions) are answered by clerks. I cannot recommend to engage in this company in any way.