For using score api as it is mentioned it is require to take publish_actions permission as mentioned here https://developers.facebook.com/docs/games/scores/
when I tried to add permission to my app it is giving error It looks like you haven't made any API requests to access content with the publish_actions permission in the last 30 days.
I am making call FB.API("/me/scores", Facebook.HttpMethod.POST, PostCallBack, scoreData); in game (which is not working)
note that I am doing re-submission. any solution how can I submit facebook app for review for permission of publish_actions