So I just looked into it. It appears he was warned on this post https://forums.racingrivals.com/rivals/discussion/5320380/eddieward-3-0/p6 that's why it's says scammerscammerscammer . I did ban him after at his will though.
http://www.trademarkia.com/fr-fueled-racing-85894475.html At the top of this page it has the old logo. I remember it being black and red though. Also some trade mark info further down.
It's not necessarily the amount of cars you transfer... It's an autoban the ban you for gameplay that doesn't appear to be normal. Yes please press the "?" Button in game for assistance.
It'll take time. Less than 2 weeks I'd say. Stay patient. You would have been banned because you triggered an autoban. Basically you were doing something that wasn't considered normal gameplay.
They are codes that reward various things. I've only seen them given out a few times since the game was launched... They are very rare. They gave a bunch a way on Twitter a while back. There has also been codes coming from other "cie" games.