Hello. I am an artist/creator and have been listing my designs on Merch since the first week of February. Now on tier 100. I have just discovered many of my designs have been stolen and posted for sale on other sites, specifically teespring and bonanza and there may be more I haven't found yet. They are exact copies, pixel-for-pixel, including my name/copyright in the design, and a few on bonanza are even using photos of the shirt mockups from Merch!
If I was selling simple text-based shirts I may not care, but these are my own hard work and creativity, unique works - illustrations created by me and that I put my heart and soul into. Having cheapo copies sold on these scammy sites is damaging my brand.
I have attempted to send these sites and sellers takedown notices, but whether they'll do it is one thing, and the possibility/probability of someone else doing it again is another. What else can I do to prevent this from happening? Is there anything Amazon can do to prevent this in general or assist individual artists specifically?