Canon Product Launch interview questions

I had numerous interviews. They were exceptionally disorganised. The gaps between each interview were at least 3 weeks. After my last interview the HR lady dropped me an email asking me when she could call me. I responded but did not receive a call for when I had suggested. Eventually I emailed to ask her for feedback she did not get back to me. Which I think is appalling considering the amount of interview stages they called me back for.