Thanks for the congrats everyone
Ozflyer, I was offered either 25th October or 1st November so I'm going to take 1st November I think.
Jennylee, they will definitely leave a message/try again for your referee if they don't get through on first attempt. A similar thing happened to me. They only called two of my referees in the end. I know the wait can be a little...well nervous....but.....I don't think you have anything to worry about. Good luck with it all & let us know how you get on.