Banned registrars? Anyone have a list?

[Jicky Jack]

Hi All, I'm new to posting so and being involved in boards like this But it is certainly the place to get the right answers.

My question is this: I have heard and noticed that some TGP and possibly LL are not accepting submissions from domains that are registed with certian registrars. Is this ture? and before I register any more domains from gkg.net,,, are they one one the banned registrars?

Does Cleo and GG etc... have a list online of banned registrars??? or is that something that will be forthcoming?

Thanks..

Jay