Redeem code minecraft windows 10 edition

I am trying to redeem a Minecraft windows 10 edition key from the Mojang website.

This is the prompt I am trying to redeem from:

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Minecraft for Windows 10

You bought Minecraft: Java Edition during a period of time when Minecraft for Windows 10 was included for free. Claim your redeemable gift code by clicking the button below and follow the instructions. As you
might have guessed, Minecraft for Windows 10 can only be played on Windows 10.

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It allows for users who have purchased the java edition of the game to then redeem a code for the windows 10 edition of the game.

This is the error message that pops up:

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Error! It looks like we've temporarily run out of gift codes for Minecraft for Windows 10. Don't worry though, more codes should be on their way. Please check back later!

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Thanks for any help!

If you have Java Minecraft, sign in with your Mojang Account on the Minecraft Website, and you should get an offer to redeem a code for the Windows 10 Version.

However, it was long ago since I did that, and don't know where exactly you need to go.

After you got your code, you can go to the Windows Store App on your Windows 10 PC and redeem that code in the Store App to get Minecraft Windows 10 Edition.

EDIT: It seems that you need to have purchased the Java Edition before Oct. 19th 2018 to be eligible for getting Minecraft Windows 10 for free.

For more information check this website: https://help.mojang.com/customer/en/portal/articles/2064007-minecraft-for-windows-10

Hey Nikolio16,

Minecraft: Windows 10 Edition runs specifically on Windows 10. If you would like to play Minecraft on Xbox One, you will want to take a look at Minecraft:
Xbox One Edition. If you would like to install the Windows 10 version of Minecraft on your Windows 10 PC, sign into the account that originally redeemed the code and download through the Windows Store.

Hope this helps!

It still hasn't worked. The Minecraft: Windows 10 Edition says I have to redeem a code ,but it shows up in my all owned.

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