I applied for an admin position, took ages to fill out the application form on line, went through the process of answering the questions which I think were about 40, I then waited over four weeks before I heard that I had got through the first stage by a phone call and was invited to attend the Magic Round about. There were 18 people there. I think I was more annoyed that I had actually gone to the bother to reasearch Asda. buy new clothes and then waste an hour of my time to attend and to be told that the job that the job I actually applied for had been filled. If your not bothered about what job you want then attend, but if you've applied for one particualr job then I would ask if it is still available before you attend.