So there were several levels of progression. Once your application was successful you then had to partake in a phone interview of sorts. This phone interview was outsourced (unfortunately I cannot remember what it was called) and lasted for almost an hour, give or take. If you were successful you then had to attend a face-to-face interview conducted with two team managers. If you were successful after that you were then contacted for the final interview stage where you had two interviews in one day, with around 20mins break. Within these two interviews you were asked several different questions from 4 - 5 people.