Gallagher Administrative Assistant interview questions

I was contacted by Gallagher's talent acquisition team so that we could "connect and discuss the role in detail". They asked me to provide 3 time slots (dates and times) most convenient for me. They responded rather quickly with an MS Teams invite that was not close to my suggested times. I don't know why they bothered asking. I explained that I wouldn't be available for the call. They replied and rebooked our meeting for April 29th - except they mistakenly booked for "May 29th". I pointed out this error and the person replied that they'd changed it for April 29th (i. e. they STILL didn't notice). Foolishly, I assumed that despite the calendar issue, they would remember our call and it wouldn't make a difference. I was wrong. I showed up 10m early to our interview time [April 29th @ 1pm), and emailed Gallagher's TA team member, reminding them of the correct date and Teams link. They never showed up or replied to me. This was yesterday afternoon. I'm very disappointed in the poor insight, organization, and attention to detail by Gallagher's staff. This was a complete waste of my time and energy