Tesco Free Cadburys Mini Creme Eggs - Easter Free Stuff

It appears that some customers of Tesco Online are able to get Free Cadburys Mini Creme Eggs when they order online. The only problem is that it appears to be totally random who are offered them!

If you're lucky enough you're met with a nice welcome message:

Happy Easter from Tesco.com
Cuddly bunnies, fluffy chicks, yummy eggs - we love Easter and there's no better time for a little treat.
As a small token of our appreciation for being such a loyal customer, we'd like to offer you a pack of chocolate mini eggs to enjoy this Easter.
To receive your free mini eggs simply click on the 'add to basket' button on the right and your free mini eggs will then be added to your basket.
Enjoy your chocolate mini eggs and have a Happy Easter from Tesco.com