Tesco interview questions

I got a call for an interview just less than a week after I applied. The interview process consisted of a Health & Safety talk, then half of us had to work at the checkouts, the interview was next and then with the same group of people we had to create a tower of paper which had to be at least 6ft tall. The people carrying out the interview had a lot of energy which made the process more enjoyable and comfortable.They said they would call you with 48 hours if you got the job or email you if you didn't. However, I was never contacted.