Knockoffs using my brand name

Not sure if this is the right place for this, if not please let me know where I can go with this question.

I have a brand where I sell a custom product on Shopify. Recently, a TON of Chinese knockoffs of my product have came up on Amazon. Normally that’d be fine, but they’re all using my brand name and some are even using my images with my brand name removed. A lot of customers are confused if we sell on Amazon or not because of this.

I have a pending trademark for the brand name they’re using. The name has been in use for over a year. Ideally I’d like for these listings to be removed. Is there anything I can do?