ASDA Colleague interview questions

Applied online. Had to do a long but easy questionnaire. After 2 weeks got an email that my application was unsuccessful. Then got a call 2 days later asking if I was still interested to come for a group interview "Asda magic" which was 3 days after the day I got the call. I agreed to attend. At the group interview there were 8 people other than me and two people were absent(2 empty seats with name badges). There were 3 rounds. First one was to introduce ourselves to the person sitting next to you and introduce them to the group. They gave us 3 questions to discuss i)what's your name? ii)why do you want to work for Asda iii)what matters the most to you in the world and why? In second round, we were divided into two groups and we had to was make a tower of balloons, and they judge you on how you work in a team etc In Third round, we were given a tour of the stock room and left us on the floor to act as shop assistant for 15 minutes. Then we given forms to fill about our availability and preferred departments and uniform sizes. And said we would hear from them next week if we were successful in this interview. Got an email and call 2 days later saying I wasn't successful. Got a feedback too.