The AME Group interview questions

Initially talked with HR and she was wonderful and very friendly. I then proceeded to do a self interview with about 10 questions that are limited to 1 minute each. The next interview with Randall (Service team manager) and it went fine however I was told that it was initially planned to have another person there to stress test people. I was asked questions mostly about handling clients not very technical at all. At this point I was a little concerned as it seems like they weren’t testing technical abilities at all. The 4th interview was completely unorganized, unprofessional, and honestly a waste of time. Randall didn’t prepare for the interview at all. He had brought in a couple others to question me and that was a little more technical but still very low level stuff for a tier 3 position. About halfway through this interview Randall mentioned he forgot to print something. He left the room and printed a piece of paper and brought it to me for a surprise drug test that they wanted consent for. Because of my medicine saliva tests are extremely difficult to do on the spot. I couldn’t get any of the 3 tests to trigger. Randall was also unprofessional and swearing throughout the interview. I was told I could just go to a professional location to get tested the following week because of the holidays. Two days later I get a message saying they’ve went with someone else. My only thought would be the inability to trigger the drug test.