Probably he had his account already tracked through another affiliate that doesn't provide rakeback...
I opened my acc some time ago when i had no ideao what rakeback is....just e-mailed them few days ago saying that i would like to play at FT but am interested first if i am available to get rakeback in any way.
Since my account wasn't tracked anywhere they responded quickly and said that they provided my information to their partners that can provide rakeback. So now i'm waiting from them to provide me with further instructions.
All in all, if you don't have your account already tracked through someone you can get rakeback.