says i have a problem with my account

Hello ITZBVAN,

Our reports indicate that we have not been able to deliver messages to your address. While this does not negatively impact Rewarding, it may cause you to miss messages from our program. We are currently investigating why some users are receiving this warning. We'll
update you here with our findings.

Hello ITZBVAN,

We have disabled the yellow light notification, and removed it from user's pages. To be clear, this notification was not an alert indicating an issue with Rewarding. We apologies for the confusion this notice may have caused.

If your account is over the age of 18 you must promote it

By removing it from under the control of the parental account

And no changing the ms account nor the age of the acount after the fact won't promote your acciount

It goes by the original dob on your account not future chcanges

Removing it before the age of maturity will only force you back into it by requesting a parental account

Sorry but you must be over the age of a minor as defined by the country you are in. Also if you are an adult and you age is correct on your account the other reason I've found is that your account is managed by a family parent account. If this is the case
then your will always be considered a child account as this is what they are considered no mater your age.

Can you please check you account to make sure there are no overdue payments or subscriptions.

https://account.microsoft.com/services?lang=en-gb

If you do you will need to clear them before you can continue using your account.