Wacky Kingdom interview questions

I was invited to an on site interview which lasted 15 minutes. This was in full vue of both staff and customers and featured the manager scolding staff from the interview table twice. I was told the job would be monday to Wednesday with Saturdays while in training. This turned out to be wrong as i frequently work Thursday - sunday as well. While i was told this was a 24 hour contract my actual contract says its 0 hour. Don't believe what they tell you in interviews.