Using the new customer code twice (ZG430), I got the nano for £45.8 delivered, including £5.49 from Quidco.
I first ordered one, but decided to cancel since I had changed my mind about the colour, and also forgot Quidco. I called CS, and they cancelled the order without issues. When trying to order again, couldn't use the new customer code anymore, so I created another account.
Looking at my bank statement, they created my account twice with £30. Total price for the Ipod nano comes to £45.8, incl. Quidco. Can't beat that price!