Facebook_friends integration and iOS IAP expert for Flutter Project

Hello

I need an expert for the following two tasks.
Please only apply for this task if you have experience with flutter, Facebook friends integration and iOS IAP.

I need an expert for integrating Facebook_login and friends.
The implementation is done with flutter_facebook_auth package and https://graph.facebook.com/v14.0/me/friends?
The problem is that I don't get it approved with Facebook.
Therefore I need someone to check the code, do necessary adjustments and submit for review by Facebook again. This involves also dealing with the found issues by Facebook. At the end I need an approval by Facebook and a working implementation.

The second thing is iOS IAP. The implementation is done with in_app_purchase package and is working fine for android. On iOS however I have problems to get the product details. Therefore I need someone to debug and test with sandbox account. At the end I need an approved version of the app by apple.

Best,
Cornelia