I had an assessment centre event at the Leeds office, with 7 other candidates. We first had a short ice breaker activity. Then, a debate with 3 other people (2 of which argue the same thing), this was really relaxed, my debate was on whether the royal family are still relevant. I think for this part they just want to see how you put your point across. After, we were given an independent tasks, where we were given 2 different types of credit cards, and had to sell our preferred one to 2 line managers (this involved some calculations). And lastly, an interview which was competency based (used the STAR method).