It was actually very causal, met at the customer service desk and they sign you in and scan copies of your passport. Sat in the waiting room with other interviewees and go to a meeting room. You are split into 2 groups and work on a few prompts such as dealing with a difficult customer and highlighting certain products for events etc. Then fill in availability sheets and preferred departments. Then there is an opportunity for final questions and you hear back within 2 weeks (depending on when they have finished interviewing all candidates).