How do i login in this Situation

So if I put the question another way...

1. How are they able to play certain games eg FIFA21 without logging into their account?

2. How do I force the situation whereby they have to login to their account to play those games?

Hello, first it's a pleasure to be able to help you today.

My name is welcome to the community.

Hello Memewithatheme, I'm sorry about what happened to your brother's account, in cases like this you should try to recover your account by the account recovery form below.

Recover your account

https://account.live.com/acsr

Help with the Microsoft account recovery form

https://support.microsoft.com/en-us/account-bil...

Hi there. My name is Ron, I'm an independent advisor. I will be more than happy to help you.

Please use this link to request a refund, https://support.xbox.com/en-US/forms/request-a-....



You can get the order number from this link, https://account.microsoft.com/billing/orders.

Hi, check your Microsoft purchase history here for information regarding any purchase(s) made to your account: Microsoft account | Order history

If the charge does not appear on your account, and Microsoft Support has failed to assist you, you can file for a chargeback with your bank for fraudulent activity.

Hello again, I regret that they are referring you to the Forum, because as I mentioned, here we do not have the means and tools that they have.

Try contacting them again to see if they can help you.