Allow to change the classic gametag without changeing the normal one.

I'm having almost the same situation I didn't change my gametag at all but somehow my gametag changed to something i didn't like so what can i do to change it without paying for it

Hi,

You cannot change the suffix that was added to your gamertag. If you'd like to change how the classic gametag appears for locations that don't support modern gamertags, you can se the "Customize classic gamertag" option when reserving your gamertag.
NOTE: A suffix is added when that exact gamertag is already registered. If you enter a unique gamertag, no suffix will be added.

Thanks

within the last hour, my only issue i can see is that i allready have the maffa82 gametag but with the #2350 at the end, im thinking it wint let me change it to what it allready is but without the suffix at the end or will it just change itself knowing there wont be anohter maffa82 gametag?

And two days later my gametag change came through without me doing anything. Problem solved

You're welcome to make feature requests and suggestions over on the insider subreddit. https://www.reddit.com/r/xboxinsiders/comments/gx6eby/xbox_requests_week_of_june_5th_2020/