Nova Driving School interview questions

They called me right on the next day after my online application, inviting me for a interview. During the interview was everything okay. 2 days latter(in a Friday) they called saying that I was accepted and latter on at the same day, sent me an email with 7 slides that I should study and make myself ready for the training(which would last 2 weeks). Guess what?! I spent my entire weekend studying those slides. On Monday they sent me an email saying the training is postpone and they would contact me soon for more informations. 1 week latter, no messages from them. I sent them na email, they even didn’t bother themselves to reply me back. I tried called and nobody there have any kind of information. What kind of company does this?? Definitely not reliable and I definitely not recommend.