Kevin
For the Agency to get and set up a web-cam would cost them about $10 !!!!!! Its no big deal.
But your Lady would need to go to their offices to use it, which may be a problem for time difference between you and her ??
As for QQ...I am sure your Lady has a mobile phone ( if she does not, then she is the only woman in China without one !!) and Mobile QQ is in widespread use in China.
You can see that maybe the Agency COULD, repeat, could ,be just trying to extend the "EMF" period a little longer...so push them a bit harder
Until you get onto some form of face-to-face communication, you are wandering in the dark a little !!
Once you do this, so much more becomes clearer and more real.
DavidE