Alternative Heat interview questions

Straight forward interview. Quite lax about everything, even sending out the information regarding the interview itself. Staff seemed lovely. Thought I could have done better in the interview since it was my first one in nearly 5 years, so I was looking forward to feedback to use in future interviews - I never received any feedback whatsoever, nor did I find out whether I got the position or not, I literally heard nothing - which I personally find really unprofessional and rude; has genuinely put me off applying for any other positions here in the future.