Leading Edge Automation Graduate Engineer interview questions

Definitely the worst interview I have ever been in. I initially applied for their Perth location and the interview went really positive, Then I did a psychometric test at the Melbourne office and it went well as well. The people at the Perth location were terrific. But then I was told to go for a physical interview at Melbourne office since I am based on Melbourne. I asked the HR recruiter at Leading Edge Automation whether it is going to be a technical interview so that I can prepare my self. She said no and told me they just wanted to meet me. When I went for the interview, apparently my interviewer had not read the memo. He had no idea I applied for the Perth position and had no idea about the position I applied as well. Moreover he did not know what a double degree was, He mocked me saying that double degrees are useless, Also went on to ask me technical questions for over 30min, I was honestly surprised by the lack of communication between their HR and interviewers. The interview was literally all over the place, Literally asked the same questions that they asked in the first interview all over again other than the technical questions.