I applied through an employee referral. The process took 1 week. I interviewed at ASDA (Ayr, Escocia) in Apr 2015
Interview
Online first which was various questions testing basic knowledge then onto the Asda Magic session which was as others have posted about how you work as part of a team rather than how great you are as an individual. Be a team player at all times during the magic session and you'll get on fine.