Error when trying to play online for 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!

Looked through some of the help articles - man the information is confusing.

Anyways from what I'm inferring from the posts is that you can play Windows 10 to Windows 10, and Pocket Edition to Windows 10 and that's it right now.

https://support.xbox.com/en-CA/games/game-titles/minecraft-help-on-different-devices

"You can play Minecraft: Windows 10 Edition Beta with other devices running Pocket Edition, such as Windows 10 and Windows Phone devices. Right now, you can play local multiplayer on Minecraft: Windows 10 Edition Beta. Soon after the launch, online
play will be available for Minecraft: Windows 10 Edition Beta."

http://support.xbox.com/en-CA/games/game-titles/minecraft-windows-10-edition-beta-faq#a5eebb2f431442ff850f552a209f44ed

Can I play online with other people on Windows 10? Or on different devices?

You can play with up to four other people running Minecraft: Windows 10 Edition Beta or Pocket Edition on your local network. You can also play online with up to four of your Xbox Live friends in online multiplayer gaming.

You seem to have registered an account under 18+ of age. Only your parental account can change your privacy setting.

Hi, which version of Minecraft PC is this?

Windows 10 edition Beta?

Minecraft PE: Windows Phone?

Minecraft PE: android?

Minecraft PE: iOS?

and what is the error codes you get when trying to sign in?

Also do you have the Xbox app installed on your device?

Hey there, SnappyBark0! Minecraft: Windows 10 Edition Beta is only available free for users that had the original Minecraft: PC (or Mac) Edition. If you only have the Minecraft: 360 Edition, you will not be able to get the Windows 10 Beta version for free.

For more information, check out our
Minecraft: Windows 10 Edition Beta FAQ! Please let us know if you have any further questions.

I have the pc game linked to the email *** Die E-Mail-Adresse wurde aus Datenschutzgründen entfernt. *** but when I try to play the win 10 edition it says that I have to buy it