In-app purchase is not working properly when there's no payment method on a physical device.
>>> This issue is not reproduced through Sandbox. It works very well on Sandbox. <<<
>>> Need help to find a way of debugging this issue <<<
* Check below Github link first, please!!!
* Reference Github Link: https://github.com/dooboolab/react-native-iap/issues/307
[ Steps to reproduce the behavior ]
1. Set the payment method into 'None'.
( How to set it up : iPhone, Settings > iTunes & App Stores > Account Settings > Apple ID > View Apple ID > Account > Payment Information )
2. Make an in-app purchase on other application.
3. Once the iTunes account is verified, 'Payment Information Required' will be shown. Then press 'Continue' update the payment method.
4. Then the app will be automatically changed into Payment Information of iTunes Settings. Then update the payment method.
5. Once the payment method is verified, the payment for the IAP will be made, but the framework not working properly.
* iPhone Xs Screen Recording Link: https://firebasestorage.googleapis.com/v0/b/cooni-ebee8.appspot.com/o/Github_iOS_iap_COONI_2018-12-17.mp4?alt=media&token=43ff6f97-d0e5-40c6-8e71-cdc914a8b1fc