Hi @magsh112
I'm sorry your family has been dealing with this for so long. Losing access to an account after it is compromised, especially when it belongs to a child and contains purchased content, can be extremely stressful.
Based on what you've described, it sounds like you've already completed the steps that forum contributors would normally recommend: reporting the compromise promptly, having the account locked, providing ownership information, and obtaining an escalated support case. Unfortunately, account recovery and ownership verification are handled only by Microsoft's account recovery specialists, and neither the forum members nor moderators have access to the tools needed to review or reopen those investigations.
The fact that the profile still appears in your Microsoft Family group may help support verify the account's history, so I would keep screenshots of that information available in case the recovery team requests additional evidence.
Since you already have an active escalated case number, the best course of action is to continue following up through the same support channel rather than opening additional recovery requests, as multiple cases can sometimes make it harder to track the investigation. If the case was confirmed as escalated and you have not received any updates, contact Microsoft Support again and provide the existing case number so they can check the status of that specific escalation.
Thank you so much for your understanding and time.