InductiveHealth Informatics Senior Help Desk Analyst interview questions

I applied through a referral. I had a phone interview with the hiring manager and then with the CFO. After the interview, I was given a start date and told I would be emailed an offer letter. Never received it. I tried to contact the CFO but he ignored my calls and when I finally got a hold of the hiring manager I was told "Oh I guess he changed his mind." Very unprofessional and I would recommend everyone I know to avoid this place.