How to activate an Apple Gift Card key?

Redeeming an Apple Gift Card key is really simple, just follow these steps:

1. Open the App Store on your device.
2. Sign-in to your account.
3. Choose the Redeem Gift Card or Code option.
4. Enter the purchased Apple gift card code.
5. Finish the process by pressing Redeem.

The key is not working

If you have activated the key according to the guide but the code appears not to work, please check what type of error message you receive and depending on it follow the appropriate instructions:  

• My key is Duplicated / Already used
• My key is Invalid
• My key is region locked / can't be activated in my country
• My key activated a different product
• My key did not activate all of the content