My app for kids was rejected by Google because:
I have no mean to contact Google of course.
I put in the privacy policy field: http://nas.les2fred.com/myplayground/privacy.htm, which is a valid and persistent link. I'm the owner of the URL domain. So if someone can explain this rejection...Apps are required to have a persistent privacy policy statement. Check to see that you’ve copied and pasted your privacy policy URL into the correct field in your app’s Play Store listing. The URL must be valid and direct users to a privacy policy that specifically pertains to your app.
I have no mean to contact Google of course.