HELP! about myPlayer Account name..

Anyone know how to change MyPlayer Account name in nba2k? I have an account and I want to change my username in nba2k. i tried editing it in myplayer account but its just loading.. i tried opening it in new tab and it shows like this

You do not have the required permissions to view the files attached to this post.

I dont think you can, but to know for sure, support.2k.com