In stages, ask questions about your cv and then STAR questions followed by listening to customers and answering questions. They ask questions such as, tell us a time you’ve been under pressure or tell us about a time you’ve dealt with a difficult customer.

I had applied for the position a while back and thought it was a good idea based on my own experience. However, I found that the interviewer at the second stage was slightly biased against hiring me as they had advised they were unsure about taking me on as I had done an Art degree even though on my CV most of the jobs I had done were customer service based