Alteriwnet Ban Help

I was playing Alteriwnet mw2 i got banned for stupid reason I wasn't hacking or anything. Well anyways I am banned
I have got a new XUID & restart my router still banned.
can u guys give me another way to get unbanned my XUID & IP is unbanned or least were says its diffrent I am not using any ip or XUID programs.
Restart my router for ip.
Reinstalled my windows 7 to windows xp got new one,

Do you guys have any other things that I am banned by? & How to get myself unbanned?

PLEASE HELP

Maybe this will help.Search on the internet for IP changer's.I don't know never got banned!/yea

IP change, mac id change, both do not work.

Only way is to reinstall your OS.