Capgemini Invent Principal interview questions

The worst interview process ever. For context, I am an MBB manager and have gone through lots of these processes before. The recruitment team is at its worst. Twice, they scheduled the interview and sent me the invite with absolutely no information on what to expect in the interview - is it a case or a behavioural? Despite sending multiple emails for clarity to the recruitment team, there was blanket silence, only to be sent another email schedule for the next round. Totally unprofessional behaviour. I would never work for such a company and I wonder how many more like me experience this. I even raised this point with the interviewers. They apologised for the unprofessionalism shown by the recruitment team. As expected, I was ghosted after that. :)