I just rang up sounding all nonchelant about it, or at least trying to.
Lady on the other end assured me that it was fine and when I asked if I should include a late entry fee she said:
"No, you're a superstar outranked only by the great Valentino himself (the real one that is !
), we'll pay that for you!"
Actually, that's not quite how it went, but I didn't have to pay a late entry fee. Nice.