Super Bock Group interview questions

I applied for the position and 1 month later I went to an interview. The interview was in the company premises. The interview was about 1 hour and 30 minutes which I think it is long.

They dragged me to a couple of interviews, told me they would give me feedback in 15 days, 1 month after, nothing , I had to reach out to them to get An update, I got no feedback, the status of the interview was automatically updated via landing jobs (rejected), but not a word from them. LAck of professionalism.