Tagged by Full Tilt

[PureDiesel]

I've tried to sign-up there and in the registration form box BONUSCODE was blocked. That's what support told me:
[ QUOTE ]
Thank you for your email. Unfortunately from viewing your account I can see the reason you are unable to type in a bonus code is because your account is already tagged to a non Rakeback affiliate. This means we are unable to switch your account.

[/ QUOTE ]

Why they discriminate my rights compare to other players, i don't get it.
Please, help.
Thanks.

P.S.>>I chose TITN as my affiliate, but they have not even replied to my letter. Now I am totally confused.