Not worth it.

Usually on small dollar items they don't even ask for the old one back.

You should, or at least report it. That’s how it continues.

Reporting doesn’t work. I reported a counterfeit item and amazon apologized and refunded the money and promised to go after the seller. In the end they removed all of the seller’s negative feedback since it was “fulfilled by amazon”. What a joke.

Is this something that would be worth reporting/forwarding to the manufacturers of the soap (Johnson and Johnson?). It seems that they would have a stake in preventing counterfeits of their products being sold and Amazon might be less willing to blow off complaints that come from the legal team of a multinational.

If you still have the counterfeit item and a copy of the correspondence between yourself and Amazon, it might be worth forwarding...

Edit: I realise I have responded to the wrong person. The point still stands, however.

The already know...

What are they going to do?

Sue Amazon? All legal precedents indicate Amazon will win

Sue the fly-by-night Chinese company? How?

Reports on Amazon go straight to /dev/null

When I was a seller on Amazon I got a whole bunch of scam messages from scam buyers. I reported each one and marked the message "no response needed." The latter is important because you're judged on how quickly you respond to customer inquiries. The only thing that happened was my seller account got dinged for marking too many messages "no response needed."