redeeming a digital code

Have you checked the card? It might have instructions on where to redeem the code. That 10-digit code might redeem on a website which then gives you the 25-digit code for you to redeem.

That is not correct. The code is 20 digits, while the PC redeem codes are 25 digits.

You have to redeem the 9 digit code at the Microsoft store by "purchasing" the $15 card and checkout using the code. You will then receive the 25 digit code in a separate email that can be redeemed on the console or on Xbox.com.

As AdyCarter says, your original email with the 9 digit code contained all the steps needed to redeem and receive the $15 credit.

It was a 10-digit code revealed under a scratch area to redeem for a 25-digit code.

Hello there,

Thank you for bringing this to our attention. What type of code are you trying to redeem? Any Code that the Xbox takes has to be a 25 digit code. any more or less digits in the code would lead me to believe that you need to enter that code elsewhere.

If it is a 25 digit code, I would try
logging into our Website to redeem the code from there.

Hope this helps!