I got an email from this site implying that my daughter had signed on and suggesting that I should sign on and collect discounts for my grand children. She had not and also her and her husband had received unsolicited email from Kidstart too. It may be that their website has been hacked but whatever, I would advise anyone not to open emails from Kidstart and to delete them immediately.
About this site
Families use KidStart to put money away for the future, with money back on everything you buy online, including every grocery purchase on Waitrose.com. We work with 450+ retailers, including John Lewis, Boots & House of Fraser