Hi glynsalmon,
I understand your concern and I am willing to help you with your issue.
For your privacy and security, we are bound to strictly follow our policy that we should not provide any information at our end for security reason. If you have difficulty remembering your email account, I suggest that you try to
reach out to your family, friends, or business contacts to verify your account.
For more information on how you will know your Microsoft Account, kindly refer to the link below.
I cannot remember my Microsoft account. What do I do?
Thanks,
Joem
This is less than useful if you can't find the email address and you have a kid account attached to it as there is no way to remove the kid account from another account unless you know who is set as the parent.
If you go into the kid account it shows you it has a parent BUT NOT THE EMAIL ADDRESS OF THAT PARENT which is less than helpful if you don't know how to get into that account.
There needs to be a way of switching kid accounts if the parent loses the email address they used!