You will recieve a call and be given a selection of dates on which they are interviewing, and invited to attend whichever is convenient.
Fatflyer, I'm sure what you are saying is generally true. Unfortunately for me they rang me up and invited me to interview but could only offer me one day, on which I happened to be out of the country
Now I'm left wandering whether I'm going to be called again at some point or if I have blown it by turning down the one day they offered - I have tried ringing them but haven't managed to get a definitive answer.
PW