An App Store and iTunes gift card adds to the balance of your Apple account: apps, games, in-app purchases and subscriptions such as Apple Music and iCloud+ are paid from that balance. Cards are offered here for the USA and Türkiye and can only be redeemed when the country of the Apple ID is the same. You can see the country in the iPhone settings by tapping your name and viewing your account under media and purchases.
The region is shown in the product name and description. A region mismatch is not grounds for a refund, so check the region before you pay. If a code does not work, contact support within 48 hours of receiving it, with a screenshot of the error.
