Instructions:"This offer entitles you to 20% off a single transaction online. This discount cannot be used in conjunction with any other promotion or offer. This discount is not available with the purchase of gift vouchers/gifts cards or for paying customer accounts and there can be no cash alternative."
Works with free delivery code - WELFREE09 which expires 07/07/2009
Don't forget Quidco 5%
Hops this helps someone :)