Hello,
I'm glad to see other volleyball enthusiasts in Hong Kong. When I was there over the summer to teach, I had an immense difficulty finding games asides from games organized by another GeoExpat member named Jau (whom, might I add is a very kind person).
If there is any other people looking to organize some games, I would be definitely interested. I won't be back in Hong Kong for another couple months, but it's good to be ready and prepare in time.
Might I also add that I started a thread on here in regards to indoor volleyball last year. Since than, it's grown exponentially, so feel free to check it out
here.