Xbox gamertags

I'm trying to change my classic gamertag which is the one you see in games. My classic gamertag got changed and my Xbox One and Xbox App gamertag stayed the same (the Xbox One gamertag is the ones they added with the new gamertag system).

My Xbox One gamertag is different to my in-game gamertag and I want my classic gamertag to be changed. You can only change your classic gamertag on the Xbox One console, I have tried using the other ways and you can only change your Xbox Gamertag, not your
classic gamertag.

The reason I want to change my classic gamertag is that the classic gamertag can be fifteen characters and the Xbox One gamertag can only be 12 characters. If I use the other ways to change my gamertag it limits me to 12 characters and sets both my gamertags
to that.

support.xbox.com/.../change-xbox-live-gamertag

You can easily change your Xbox Live gamertag. If your
gamertag was created for you during your initial Xbox Live sign-up (meaning, you did not choose your gamertag), you can change the gamertag one time for free. Additional Xbox Live gamertag changes cost extra.

The txt quoted is in the section which yes has the Windows LIVE section below, but at the top clearly states Xbox 360 Console:

"How to change your Xbox LIVE gamertag

Change your gamertag on your Xbox 360 console

You can easily change your Xbox LIVE gamertag. If your gamertag was created for you during Xbox LIVE sign-up, you can change the gamertag once for free. Additional Xbox LIVE gamertag changes cost 800 Microsoft Points.

To change your Xbox LIVE gamertag

On your Xbox console, sign in using the Xbox LIVE gamertag that you want to change.

Go to Social, and then select your gamertag.

Select Change Gamertag.

Note the Price of the change, and do one of the following:

Select Enter New Gamertag. If the gamertag you enter is already taken, you will be prompted to try another gamertag.

Select Get Suggestions to view possible gamertags.

Once you enter or select a new gamertag, select Yes, use this gamertag.

Note Click Add Microsoft Points if you don’t have enough points to complete the purchase.

Once you confirm your new gamertag, the change is reflected across Xbox LIVE. You don’t need to tell your friends that you changed your gamertag — their friends lists will be updated automatically."

Again a clear statement from Microsoft, it should be honoured not dismissed.

Here's a guide to changing your gamertag on the Xbox One:

support.xbox.com/.../xbox-one-change-gamertag

sorry but i don't really understand the problem here.

you lost your gamertag while unstalling your profile.

but what do you want? your old gamertag back?

well if so i'm sorry but for that you gonna have to buy a gamertag change. here is how:

How to change your gamertag on the Xbox 360 console, you can easily change your Xbox Live gamertag. If your gamertag during your first log on to Xbox Live for you is made (in other words, if you haven't chosen your gamertag), you can change this gamertag
once free. Additional changes of the Xbox Live gamertag cost extra. Your Xbox Live gamertag sign on your Xbox console with the Xbox Live gamertag that you want to change.

Go to Social, and then select your gamertag.

Select Change Gamertag.

Note the price of the change, and then do one of the following: Select Enter New Gamertag. If the gamertag entered is already in use, you will be prompted to try another gamertag.

Select Get Suggestions about possible gamertags.

After you have entered a new gamertag or chosen, select Yes, use this gamertag.

When you have your new gamertag confirms, the change is automatically anywhere on Xbox Live. You do not need to tell your friends that you have changed your gamertag: their friends lists are automatically updated.

Did you make a mistake when creating your gamertag?

If you make a mistake when creating your gamertag and you want to change it, then you need to buy a new gamertag. All purchases of gamertags must be performed using the dashboard and cost extra.