Ingenuity Prep interview questions

After completing their application, I was sent a link to schedule my interview. Once the interview was scheduled, I received a Zoom link. On the day of my interview, I logged in 10 minutes early and waited for over 20 mins (giving them the benefit of the doubt since it was right after Spring Break), only for no one to show up. I emailed the supervisor and they responded letting me know that the position had already been filled, which would have been great information to receive prior to my interview. This experience was unprofessional to say the least.