Milk is available for parents to order from the Cool Milk website by registering and setting up an account. It is free for children under 5. From the FAQs section on the Cool Milk website https://www.coolmilk.com/:
‘If you haven’t registered with us before you will need to create a parent account; just visit www.coolmilk.com/register. You will then need to add your child(ren) to the account. If you already have an account with us, log in to your account at https://customers.coolmilk.com/manage/parent.php and you can add additional children.’