A new member may only pm with a Community Support Team member until they have (I'm not certain about the #) possibly 7-10 published posts/threads.

If they try to pm before that number is hit, I think they will get a message that they are not allowed to pm yet. Again, I could be wrong about that, it's been awhile since I had to address this. I'm sorry I can't be more specific. Probably not much help at this point.