facebook audience network always quality check fail.
I followed all best practices which show on this link. https://developers.facebook.com/docs/audience-network/best-practices
and uploaded many app with various ads placement but no success. whenever i try to contact Facebook team about this issue they always say's we can tell you anything now follow our guideline.
Now i seen that once my app started to earn 50$ they fail quality check. and stop sending revenue, even if i am not getting any revenue but in my app Facebook ads is visible in free for which they will not paying anything.
Is there anyone having solution for this issue ?