Hi,
Congratulations!! I've been invited to interview as well. i was given three weeks notice!!!! HR weren't much help... asked for a contact list but told me i wouldn't have time to visit anywhere before... little did they know!!!! I myself have phoned Luton and west drayton and i have both visits next week.... says it all really eh? Get the contact details of the unit and ask the question.... i'm sure they'll be more than willing to help. I've found that weekdays are best to visit as there are generally more admin staff around to help with visits etc.... let us know how you get on! Wish me luck!!
Chris F