Xbox Gamertag was changed by a sibling

Hey DesiringArt

Thank you for taking the time to post this on the Xbox Forums. We understand that you are inquiring about receiving a free gamertag change.

You only get one free
gamertag change per Microsoft account. Anytime you wish to change it afterwards would require a fee to change.

As there is no further info that we can provide to you on this matter, we will now be locking this thread.

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Make your sibling pay for it.

Whenever you join/create a Microsoft Account they give you a random gamertag that you can change. It's because you need a handle, but they can't call you by your real name or email for security purposes. If there's a gamerscore or something than maybe you
let a friend, sibling, whoever use your email for their gamertag on an xbox. The random gamertags you can change, if it's a situation where it was loaned and they used the 1 free gamertag change then you'll have to pay 80 MS Points or $10 US.

Yes, if you did not play it then change your information.

Do you have any siblings with the ability to play on your xbox?

If so, confront then about it.

Also check to see if your other game history changes.

I suggest if you ask your siblings used your account. if not I suggest changing your password to Epic games and Xbox cause someone might be in your account.