Instructions:Sorry, not sure what this applies to as I just got the code from another site but it took just over 10% off my order of £12.95 and this is the only code that seems to be working for the site atm.
Got more details now from my order confirmation email:
*** Thanks for your order - heres 10% off your next one! ***
Next time you shop with us, simply add "Thanks" to the promotion code box at the checkout and well give you 10% off your order. (offer ends 18th December 2007)