Using other Microsoft accounts

Hello!

Thanks for reaching out to us here on the forums with this situation. I understand you're having issues with your Xbox Profile being on a different Microsoft Account than you'd like it to be. Unfortunately you aren't able to add Xbox Profile components to
any other Microsoft Account. The one similar option would involve adding and removing Microsoft Account Alias' but I would recommend you
Contact Xbox Customer Support for assistance with that. It basically would only change the login email for the account but there are a few factors that could cause problems, such
as which domain the email is under whether its an Outlook.com or other Microsoft email. Hope this helps

How to change the email address associated with your Microsoft account

there is no way, if they don't use the account then it will be closed after a 2 or 5 year period, but the microsoft account may be in use on other areas of the system, as an example, i have another account that has zero gamerscore but i use that microsoft account for other parts of microsoft and therefore the account is always in use.

They won't be able to get into other accounts by accessing your Microsoft account, but I would recommend changing your other accounts' passwords if you used the same password as your Microsoft account for other accounts.

Thanks,
Kyle

To do a split playment, you need to start a payment using a credit card and it should ask if you want to use the remaining funds in your account first, then it will pay the balance using your card. This must be done on the console and keep in mind that not
all content can be purchased using a split playment.

Microsoft do not publish the game so it's NOT down to them,it's down to the developers & you would need to contact them as to why the game has been delayed in Europe.