Endless cycle of login message and buying Minecraft

Howdy,

I heard this was an issue with a friend and I decided to try it out myself.

Essentially when someone goes to purchase Minecraft by pressing the, "BUY MINECRAFT" button in the photo, "Minecraft0" gets directed to another browser titled, "MOJANG ACCOUNT UPDATE" (Found in Minecraft1 file) the two buttons work perfectly, they go to where they need to go. Although, when someone clicks on, "Registration form" they get directed onto another page to sign into either Microsoft or Mojang. In this scenario, we've been signing in with Microsoft. We've succeeded in signing in with Microsoft and have done the steps. Afterward, we have been directed to this new page (Found in Minecraft2) after we have chosen the, "Buy Minecraft" button then we get directed back into the browser in Minecraft0, and again, we click the green Buy Minecraft button, but this time we are signed in with Microsoft. Then it starts all over again. We're back at the MOJANG ACCOUNT UPDATE page. We followed the steps again to purchase Minecraft but it keeps going in an endless loop. In the end, my friend hasn't been able to purchase the game and there is no other way of solving this on our end. 

We're hoping that hopefully, you guys can fix this issue? We're not sure if other people around the world are seeing this, or we're just idiots and are going in the wrong place. 

Thank you,

mr_Buzz