Hijack Private Label Help!!

Recently I noticed a Chinese seller is selling my product on my listing. I am registered with Amazon Brand Registry and reported this as a trademark infringement. However, Amazon rejected my claim with the following response:

We respect a manufacturer's right to enter into distribution agreements for its products. However, violations of such agreements do not constitute intellectual property rights infringement. As the enforcement of these agreements is a matter between the manufacturer and the retailers, Amazon does not assist in enforcement activities.

Our policies allow any seller to list items for sale on an ASIN, as long as the intellectual property accurately represents the item being sold and has not been illegally reproduced. This includes intellectual property for which you are the rights owner. We also require that sellers only list authentic items under detail pages that exactly match the items they are selling. Resubmit your complaint with additional details that explain your issue if you believe that sellers are doing any of the following:

-- Illegally reproducing your intellectual property

-- Selling inauthentic items

-- Listing products under detail pages that do not exactly match the items they are selling.

To learn more about our infringement reporting policies, go to this help page.

I have also placed an order to test the product's authenticity, but the shipping time is estimated to be 15-30 days. I don't want to wait that long as it will affect my listing during that period. Please help. Thanks.