I had a video interview instead of a phone interview (you have to respond 4 questions, and are given a minute for each answer). The questions have all been mentioned before (Tell us about yourself; where does your passion for IT come from, etc). The Assessment centre was very easy, a GCSE level maths test + some very basic IT and logical questions, then a three short interviews (all questions are taken from the brochure they provide, just make sure you remember what their values and strengths are), and a final Venn diagram test.