Hi. Just to clarify MN has definitely NOT given anyones email address to Waitrose (or Ocado for that matter). When you do a survey and add your email address for the prize draw then MN uses the email addresses to select and notify the prize draw winners. The winners details get sent on so they can get the prize. Sometimes we ask if you'd like to be a case study or if we can pass on your email address and only if you expressly said yes would your details be passed on. Hope this helps Ann McIntyre MNHQ, Research PS For what its worth, I've had emails from Waitrose before and emailed them to ask where they'd got my address from and they were v. helpful.