Despite treble checking my in game name and my password won't allow me to change my in game name why!!!!!

www.dogfightplay.com/management/

Make sure you know the correct password, mate.

I have that's how I log in

Yes make sure that you have the correct password and in game name or e-mail, however, make sure that your new name is not more than 17 characters long. If it is more that 17 it won't let you change your name, it might say," name already in use." Hope this helps you bud.

See you all in the skies:)