Managing personal Outlook.com account settings, security, and privacy
Hello David Viegas,
I understand you're trying to recover the Minecraft account your father purchased for you.
Unfortunately, Minecraft access is tied to your Microsoft account. Even with purchase confirmation emails, Microsoft cannot simply transfer or restore access without verifying account ownership.
Please try the official Microsoft account recovery process.
If the hacker has replaced your sign-in email and security information, recovery may not be possible. Microsoft Support cannot manually bypass these security restrictions.
I'm sorry there isn't a guaranteed way to recover the account.