I have been unable to add the Organization ID in the app store connect under App Distribution Method - Private. It has been constantly giving messages "The Organization ID or Apple ID you entered could not be found. Try again." Have contacted Apple Support who reply with a standard copy-paste message that "try later as our engineers are aware of this problem". Has anyone come across this. Apple Engineers - please wake up.....

Hello, I have a custom app developed which is meant for specific customers who are using our ERP system. The app has been published and I created an Apple Business Manager account. Then created the Redemption Codes and sent to my customers to redeem and install the App. Please note that the app availability setting is "All Countries". The problem is that I am based in Singapore, but the customer in Hong Kong gets the message saying "This code is valid only in the Singapore Store". how to resolve this issue?