Can't sign into newly added account.

You can't. The region migration tool is only available for the 9 newly added countries to Live.

Creating a new account is the only way. The migration tool is only available for the 9 newly added countries to Live.

Thank you so much for that. On the newly created account of yours can you please add your main account as a member via https://account.microsoft.com/family and once added kindly sign in to https://account.xbox.com/settings, check if you will be able to manage your main account settings from there.

Once an account is created, the region cannot be changed unless you live in one of the 9 newly added countries to Live.

there was a time when they allowed it for the 9 newly added countries but has since removed it, you will have to create a new account for your region sorry.