How to find the required postcode for payment method on Apple Music and App Store?
The required post code for payment method on Apple Music and App Store
[Re-Titled by Moderator]
iPhone 7, iOS 15
Umm... if you're entering a payment method to use for purchases on the Apple Music or App Store, then the billing information is your address and post code (or, at least, the one associated with the billing address for the card). No one here can tell you what to set.