Getting 403 Forbidden error when trying to post to FB wall

I am trying to post a pre-defined message to the user's wall. I have the user log into facebook with these permissions: "basic_info,publish_actions,publish_stream". The debug statement in callback returns a "403 Forbidden" error. I am unsure why.

NOTE: My App page on Facebook developers does not have publish_actions or publish_stream. I am trying to get it approved for use, but they need an example of it working first. Not sure how I can make it work if I don't have the permission :/.

Unity 4.3.4f1 Facebook SDK 5.1.0

Below is my code:

 private void CallFBFeed2(){
         WWWForm wwwForm = new WWWForm();
         wwwForm.AddField("message", "test");
         //wwwForm.AddField("access_token", FB.AccessToken);
 
         FB.API("/me/feed", Facebook.HttpMethod.POST, Callback, wwwForm);
         }
 
 void Callback(FBResult result)
     {
         if (!String.IsNullOrEmpty(result.Error)){
             Debug.Log("Error Response:\n" + result.Error);
         }else
         {
             Debug.Log("Success Response:\n");
         }
     }