Highlight the option for Redeem code and press X.
Press X to confirm you understand that the code is non-transferable.
Enter the code in the dialogue box, then press X.
Once the code has been accepted you will see the below dialogue, press X to continue.
Press the X button to confirm you accept the Terms of Service.
You will then be able to download the content. Press X to Download.
Your content will commence downloading.
If you have any questions, feel free to get in touch!