I can confirm this works. But there is a catch, if CC catches ahold of this, they have the power to disable every single CC account until the game is released. Be careful at least.
Been a tester for weeks now.
We have given CC and MPGH exclusive access to the Beta. There is absolutely no problem with referring people to the Beta. Not sure what you think is going on, but ya must be crazy.
The only reason that NEXON would disable CC's access to the Beta is if somebody were to "leak" game footage and break their NDA, which as per an electronic signature they can take legal action against you for breaking your NDA.