Alliance Tech interview questions

Was solicited by the company to fill a future role. I was not looking for a new job. Had two informal meetings (one with CEO) where at the end of the them I was informed that I "would receive an offer that I would really like." Weeks passed with no contact. I finally reached out only to get a response that they had no idea what I was talking about. It was the most unprofessional experience and truly shaped my perception of the company as a whole. Hoping to never deal with them again in any capacity if I can help it.