Can't reedeem gift code

Players who already have the previous PC or Mac edition of Minecraft (running on Java) can
download Minecraft: Windows 10 Edition for free.

Note You'll need to get a code from Mojang, the game developer, by signing in to your Mojang account before attempting to redeem your code for Minecraft: Windows 10 Edition. Otherwise, you
may incur a charge. To get your code from Mojang:

1. Sign in with your Mojang account.
   
2. Under Minecraft: Windows 10 Edition, select the link to request a code. Microsoft Windows 10 will open.
   
   Note You'll need to sign in to or create a Microsoft account. If you sign in, use the Microsoft account you use to sign in to your Xbox account.
   
3. If you're running Windows 10, you'll be able to download the game right after redeeming your code. If you're running an earlier operating system, you'll need to come back to Microsoft Store once you're running Windows 10.
   

The code you receive from Mojang will be kept on your account, in case you’re unable to redeem it straight away, or in case you have problems trying to redeem it in Microsoft Store.

For more info:
https://support.xbox.com/en-US/games/game-titles/minecraft-windows-10-edition-faq

You need to go in the store an if you look just under the first things you see you should see reedeem gift code an you type in the code

pls reply my code is not reedeem

Hey do you have an xbox live gold reedeem code

Thank you ,although I'm a bit confused as to why the code would expiire minutes after being sent.but again many thanks for your reply.