Yeah, tell me about it. I spent a small fortune on my multiple entry L visa in HK, and it was only good for a month at a time-- not quite enough time to get my long term residence visa. Worse yet, getting a simple extension while the paperwork goes through is more expensive than just hopping on a train and leaving the country only to re-enter it again. What a waste of my time, of space on the train and of fuel. And for what?