Clinc interview questions

Had a quick chat with an EVP over the phone and later arranged a F2F meetup via a recruiter which I travelled into London especially for, taking a few hours out of my working day. He didn't show up, didn't answer calls/ texts, and I received a vague apology message 24 hours later with no explanation and an offer to meet again later in the week (ha!). If this is how they treat strategic hires in EMEA when they are trying to woo them, I hate to think what would happen day-to-day, and reading reviews on here it seems like it doesn't get any better...

A phone interview, and three separate in-person interviews. 1 technical and 2 non technical. My recruiter had no information to help me prep for the technical. It's a combination of algorithm and AI questions.