Wait till monday, it could be processed by bitstamp, but not by their bank.
However..... it is now Friday and the money still has not actually arrived.
Was it ever even sent out?
Dear Bitstamp users,
Due to upcoming holidays, October 31st Reformation Day and November 1st All Saints' Day, bank deposits and withdrawals will not be processed as our bank will be closed.
All bank deposits and withdraws will resume on Monday, 4th November 2013.
Thank you for using our service!
Your Bitstamp team
https://www.bitstamp.net/article/upcoming-bank-holidays-oct-31st-and-nov-1st/