Yep, the days of the free lunch are over. There are some basic vending machines in the reception area but thats all (There is a canteen miles away but you can't get to it without causing a fuss to get an ID-bearing escort). I reccomend bringing a substantial packed lunch, or else its a long time to go without and you don't want extreme hunger/rumbling stomach distracting you during the interview/tests. Good luck!