Incipio interview questions

Got an email, a call, and a long test (remote), passed, and went to the interview. THe first one was by a man and a woman. They were professional and to the point. I seemed to pass that first interview and was asked to go for a second interview. There were two women asking questions this time. They seemed pretty nice but I felt like I could see why some reviews from past employees mentioned the word "highschool" in a negative because the atmosphere of the interview was somewhat casual but something was off-putting about the way they were talking to each other (maybe too casual and unprofessional compared to the first pair).

I have a Project Coordinator background and applied for a Product Coordinator position. They called to schedule an interview. I changed my travel plans and spent time preparing for the interview. A day before the interview they canceled it. Why? They turned the blame on me stating my resume better fits Project Coordinator positions. It seems as if they did not read my resume prior to scheduling an interview. They didn't apologize for the inconvenience. Unprofessional and sloppy on their behalf.