Um...please forgive me for being rude, but really, you guys didn't know until it happened to you that China is the knockoff capital of the planet? This genuinely surprises you? Wow!
I've said for years to never buy stuff from China on eBay let alone directly from a Chinese trading site like Alibaba. You will never get what was advertised, you only get a knockoff of whatever product you're looking for. And women that buy makeup from there *shudders*. Lord only knows what horrid chemical they're putting on their eyes, lips and face.
Don't be fooled that because a product is made in China that everything from China will be a legit, good quality product. Far from it.
Standard Operating Procedure when buying online is the buyer pays to ship the goods back - with tracking!! Tracking to China + low cost of crappy product = not worth sending it back. It'll cost you more to ship it back than it did to get it in the first place. You won't win a PayPal claim without tracking and the Chinese scammer continues on his merry way to scam the next poor sap thinking they've found a great deal.