In reply to MG:
Been a long time since I was last there but it's just inside the entrance (and I think it's on the right?)
As you go up to the big metal entrance doors there is security there who can help you, ask for cashier for old notes (they're used to it). Haven't used the cashier myself but security were approachable and friendly/helpful when I've been in a few times in past
Likely you can use your own bank, as a customer they should help you
Eeeeekk!!! Just read Climbing Pieman's link, that they pay you via SWIFT Maybe DON'T go there or your own bank might charge you £20 or something? (unless it's a significant wadge of cash - if so let me know and I'll help carry the suitcases, I might suddenly start running though)
Post edited at 09:19