While doing a Google reverse lookup on one of my photos which I offer for free as part of CCO license on another site, I found someone as uploaded my photo here where users will have to pay a licence to use it.
This is my image, also the same user as ripped off my camouflaged owl photo, which I offer for free
Use the Adobe DMCA reporting page at https://adobe.allegiancetech.com/cgi-bin/qwebcorporate.dll?idx=2D2U6A to file a takedown notice against content on Stock that infringes your copyrights or trademarks.
Sorry to hear that.
At Adobe, we respect the intellectual property rights of others and we expect our users to do the same. If you believe someone has uploaded content to an Adobe service that infringes your copyright or your trademark, please let us know by sending us an IP infringement notice. Details available here - https://www.adobe.com/legal/dmca.html
Feel free to update this thread in case of any additional questions.