Can't remove child account because "Remove consent" is missing

Hi everyone,

I'm having a problem with Microsoft Family and I can't figure out how to fix it.

I have access to both the parent accounts and the child account. (this one) The child account has the wrong date of birth because I accidentally entered 2015 when I created the account years ago. My actual date of birth is September 2, 2009.

When I try to remove the child account from the Microsoft Family group, Microsoft tells me that I must remove consent first.

However, when I click Manage consent, there is no "Remove consent" button. It only opens an information page explaining parental consent and links me back to the Family page. I end up stuck in the same loop every time.

I've already tried:

Using Microsoft Edge.

Using a private/incognito window.

Signing in to both the parent and child accounts.

Checking the Family settings multiple times.

The child's date of birth is also locked, so I can't correct it.

Has anyone experienced this before or found a way to remove the consent or the child account? I am gonna buy some games from microsoft store but I dont want to do that on a account thats birth date Is set to 2015. Any help would be appreciated.