Here are the full details from the email: "As a valued customer of END., we would like to offer you an exclusive 20% OFF our Autumn/Winter 2014 collections.*Please use the code AUTUMN14 at the checkout.Offer ends midnight (GMT) Sunday 19th October, 2014.*Certain items and brands are excluded from this offer." Perhaps you could try a different brand and see if that works? It works for me, but i only tested a few winter knits.
10/13/14 at 9:11pm