So there is 100 dollars on my account I don't remember adding . An my purchase history adds...

Hi. My name is Brilliant, an independent advisor. I am happy to assist you today.

If you are unsure about the source of the money in your Xbox account, you might want to check your transaction history to see if there are any records of deposits or purchases that you did not make. You can check your Xbox store purchase history to see a list of all the purchases you have made with your account. Here’s how you can do it:
1. Sign in to your Microsoft account on the Xbox website.
2. Click on your profile picture in the upper-right corner of the screen.
3. Select Microsoft account from the drop-down menu.
4. Click on Payment & billing in the left-hand menu.
5. Click on Order history to see a list of all your purchases.

I hope this helps.

Reach out directly to Xbox Support. https://beta.support.xbox.com/

Hello, I want to change my gamertag. and my mother accepted it and added 10 dollar. In my order history stands that I redeemed my 10 dollar credit on my Microsoft account. But I dont get my gamertag. How do I get my gamertag change? We already
paid

Hello, I want to change my gamertag. and my mother accepted it and added 10 dollar. In my order history stands that I redeemed my 10 dollar credit on my Microsoft account. But I dont get my gamertag. How do I get my gamertag change? We already
paid

Have you tried going into your Purchase History and Adding the item to your Download Queue? You can do this by logging into Xbox.com> My Account > Purchase History >find the item and then click "Add to Queue". I have had to this this a few times because
the download corrupted. This should work for Avatar Achievements.