How do I contact the API Support Team directly.

I already created an app in the Developer portal which I connected to Postman to workout the calls I need.
I went through the App assessment questionnaire process. The app is approved status and I have production keys. I don't want to list it on the market place. It is to be used just for one QBO account.
I just can't figure out how to get it added to my QBO production instance.
I am an admin and in account view I can't find the app I created through the Find Apps feature. 

I am not having any luck with my posts in the community forums. 
I am behind on a project deadline and I need to get this figured out.

Thanks!