Randstad Customer Service interview questions

The interviewer arrived late. The interviewer did not have CV open. Interviewer asked rather vague questions. The questions that were specific, had answers already on the CV. After indicating that I have service desk and helpdesk experience, I was still asked if I have customer service experience and call center experience. Interviewer had difficulty expressing thoughts and ideas, as the interviewer would repeatedly re-phrase their questions due to asking one thing but meaning another.

4 different phases - First call (few questions, English check, get to know the position and the candidate, etc), then 4 online tests, then interview with the main company and call for results