Found 12th Aug 2017
Might be of use to some. Sign up to Pampers and receive an email with a code you can redeem at photobox for a square soft cover 30 page photo book worth £18, or can be used as credit towards A4 personalised soft cover book. Postage is not included and is around £4. I redeemed the code on my photobox account successfully using a PC, and it is valid until the beginning of September.