IBM Watson Personality Service & Facebook Login

Question

We have been using the Watson personality service to analyse facebook posts of users who interact with our app. We provide a facebook login, the person logs into facebook and we capture the text of their timeline, then send it to watson for analysis (with consent).

This process works fine but recently the facebook graph API has asked for a "app review". I went though the whole process but my submission failed for no obvious reason, also facebook's feeback is frankly useless.

My question is... has anyone else been through the facebook app review process and willing to give any tips on getting through the challenge.

Thanks, Simon

Website Example: https://personality-insights-demo.ng.bluemix.net/

More Information: https://www.ibm.com/watson/services/personality-insights/

Example big 5: https://console.bluemix.net/docs/services/personality-insights/models.html#models

Facebook API: https://developers.facebook.com