OAth fails for your API

Hi there, when trying to setup the account link in WordPress for my Facebook app, which has been approved. There is no option to select the premium API method. I have a premium subscription, and my license is installed and activated on the server. It only gives me the option of using the native API.

When using the native API option and completing the form and finally clicking the Authorize your Facebook account link. It connects to Facebook and then asks for my password, which I input and then it redirects to a white page that doesn’t load or confirm the Oauth handshake.

So now I am am stuck, unable to post anything to my company page irrespective of whether my aps in dev or live mode.

I purchased this plugin and have not managed to connect using your own connection procedure or get any type of support. Why is there not option for me to use the premium API when I have a premium license?

I have created support tickets on the next script site, but get no answers and the tickets just end up being closed.