Unable to purchase Digital copy of Xbox One game with Microsoft Points

Microsoft points were discontinued in 2013. If you're referring to currency on your Microsoft account balance, you'll want to contact support and speak to billing. 1-800-4my-xbox if you're in the US/Canada or http://support.xbox.com/contact-us

Sorry to hear that you're having issues with purchasing the game. The reason you are unable to purchase a digital copy of the game is because the game is not available digitally in Ireland.

At one point I, too, decided to go full digital. As Smwutches said, there is no way to "convert" a disk copy to a digital license, but you could possibly sell your physical copies and use those funds to re-purchase digital copies.

And if you're an Xbox Game Pass member you can get a discount on all Elder Scrolls Online purchases right now!

Hello,

If your unable to purchase Microsoft Points to convert them to Empire Points, please try to get digital Microsoft Points. If you've already done the whole mess and for whatever reason your unable to get your cards to authorize that would be your last solution
in order to actually get points onto your account and use in the game.

There's 2 websites in the United States that allow you to purchase points digitally online, points purchased from these sites are e-mailed to you directly after paying.

Amazon.com - 400, 800, 1200, 1600, 2400, 4000 Microsoft Points (Digital Delivery)

Walmart.com - 1600 Microsoft Points (Digital Delivery), 4000
Microsoft Points (Digital Delivery)

You should be able to get a code from either of those sites and redeem them on your account and then convert them to Empire Points.

Did you purchase the game on disc or a digital copy from the Microsoft store? If it was a disc, then you will have to pay for the game again, as Xbox Play Anywhere only works with digital games. If it was a digital copy from the Microsoft Store, then logging
in on Windows 10 with the same account that purchased will let you download it to your Windows 10 device.