How to redeem the iTunes code on iPhone, iPad, or iPod?
• Open the App Store on your device;
• Press Today at the bottom of the screen;
• Tap the Sign-in button or your photo on the top of the screen;
• Choose the Redeem Gift Card or Code option;
• Enter the purchased iTunes gift card code;
• Finish the process by pressing Redeem.

How to redeem the iTunes code on Mac?
• Open the App Store on your Mac;
• Sign-in or click on your profile name;
• Select the Redeem Gift Card option;
• Enter the purchased iTunes gift card code;
• Finish the process by pressing Redeem

How to redeem the iTunes code on Windows PC?
• Press the Account button on top of the iTunes window;
• Click the Redeem option;
• Sign-in with your Apple ID;
• Enter the purchased iTunes gift card code;
• Finish the process by pressing Redeem.

How to redeem the iTunes code on an Android device?
• Open the Apple Music app on your Android device;
• Press the menu button and select the Account option;
• Choose the Redeem Gift Card or Code option;
• Enter the purchased iTunes gift card code;
• Finish the process by pressing Redeem.

For T&C visit: https://www.apple.com/tr/legal/internet-services/itunes/tr/terms.html

Gift card does not expire.