I applied online with a few application questions, followed by online tests and a video interview, then I was invited to an assessment center in Newbury. The assessment center was mixed with other roles, so it felt more relaxed being mixed with other streams it felt less competitive. The assessment center consisted of a group task, an individual presentation (1 on 1 to an assessor), a tour of the building and then an interview lasting around an hour. You're split in to groups of around 5/6 for the group task, and you have to present your ideas to 3 assessors as a group at the end of your time. The individual presentation isn't as scary as it sounds, you present in a booth with one assessor and you are both sitting down so its not as daunting as having to stand and present a powerpoint! Keep an eye on the time when you are preparing your presentation - I ran out of time and wasn't really able to show my skills and do my best because of this. The interview focused on competencies and Vodafone values. I think they look for a personality match to the company and its values rather than tons of experience!