Vyral, I suppose you (very sensibly) had it brought over by a friend as the shipping charges alone come to 50% of the cost of the product (normal set of four available on Amazon for HK$410.77). So I decided to check with JoyTime here in HK, just to try my luck after reading about your experience with them. As it turns out, they have stock, and are selling it in individual 30g tubes, each with a plunger, at.... HK$200 apiece. So, a set of four, as they confirmed, is HK$800, naturally.
One still saves 25% by having it shipped, if one can wait.
Anyway, for your future reference only....