LMG wrote they cannot ban you on other games, that would be illegal. You are going against the Fifa 12 code of conduct, however for fifa 13 for example, you never did anything wrong, never violated its Code of conduct, therefore you cannot get the ban carried over. People always debate this in COD games, and the answer is always the same

SERVER BANS FOR GAMES DO NOT CARRY OVER TO OTHER GAME TITLES.

actually... EA ban your EA account which will be linked to your Gamertag, therefore every EA game this dude will try to play it will not let him connect to the server because of the ban, only way to get round it is to make a new acount, this has happened to my old account when i modded my pro to 127 stats...