Corpay Associate Project Manager interview questions

I applied through LinkedIn and was sent a survey of 4 questions, next came an excel test. I completed the test online and was contacted almost immediately (on a Saturday) and asked if I had time for an hour-long phone interview that day. It lasted nearly 2 hours and at the end I was asked to come in for a 5-hour interview later that week. I was told numerous times that they were in a hurry to hire and I would meet with multiple people in my time block. The people I interviewed with were all very professional, kind, transparent and obviously knowledgeable. I really liked them. My problem was the numerous breaks between the interviews. I sat around waiting for at least 2 of my 5 hours on site. I was incredibly frustrated by the wasted time, I'm currently a contractor and that was lost billable time. After that I left and never heard from them again. They disappeared. I wrote a thank you note that day and followed up one week later, but I never even got a "no." It is very offensive to have been so flexible with my time and then they ghost me.