I applied online. The process took 2 days. I interviewed at Lidl (Walsall, England) in Jul 2016
Interview
Group Assessment + Interview lasts around 5 hours. It consists of Team Building, scenarios, analytical test, accuracy test then interview. Very long day but lunch is provided as are drinks. It's actually a fun day if you're with the correct people.
The second interview is more about yourself. They want to get to know you more.