I am trying to get company access token that would allow me to access payment reports associated with the company on whose behalf the token was issued. I followed the steps to get a company access token that were mentioned upon the page https://developers.facebook.com/docs/games_payments/reports/. The get request is giving error for the grant_type that is to be mentioned. I gave grant_type as app credentials mentioned in the company settings page. Please guide me further as what should I do about the above mentioned issue.