Thing to keep in mind when ordering from china is the shipping time, anywhere between 4-12 and even 16-18 weeks are normal. Some shipping agencies will take various bulk cargo for cheap shipping rates, but they collect goods until a container is fully loaded before they place the container onto a ship. Worst case it can take 8 weeks just to fill said container, then another 8 week at sea and a week or two getting handled when arriving at the dock. I find that only way to ensure not ending up with such a long drag for shipping is to be aware when ordering and choose whatever express shipping options they got. Even if the price seems high for express it will radically reduce the time of travel for the goods.
If you didn't explicit choose express at check out most likely your cargo is moving but slowly. It can be hold up waiting for a container fill up, custom papers, etc. And the sad thing is you rarely get any tracking number or updates before the cargo leaves the dock close to your destination. So you can't see that the cargo is loaded onto a ship, can't check when they left Asia or ETA on reaching your shore. But this is normal and sadly about the only way to get really good price on over seas shipping these days.
The company you placed your order with is known here at ES so I am certain they hold up their end of the deal. They can't give you any updates because they don't have any before shipment reaches your country.