Instructions:You do not have to subscribe to the email update.
You can use this voucher ONCE with EACH email address so just check out as a guest and use a different email address with each order.
You will have to pay £2.45 delivery charge as you can't use more than one voucher code per order so even if you spend more than £20 or have a free delivery code, you can't qualify for both.
Try Quidco for 7.5% cashback as well.
Someone suggested you need to spend at least £5 for the code to work but all the things I've bought so far have been more than £5 so I can't comment on whether this is true.
I've had quite a few bargains now for about £3 delivered as I have chosen items that are about £6-8. Just ordered Wonders of the Solar System delivered for £6.44.
You do not need to spend £25, I have just purchased the Office 1 & 2 and was able to use this