Company seems to be using an AI generated image based on my photo (same composition and fairly unique). How to tell if ChatGPT to blame vs company using image as template/model?

Saw an ad from a local company using a cartoonish image with a composition that exactly mirrors a photo I took ten years ago. From the grouping of people to the placement of elements, I’m 99% sure it was based on my image. This is a small town and an event (Fourth of July) making it very likely the image was based off of mine.

When I grabbed the jpg off Facebook, the filename included chatgpt but the image posted is a clear AI rendering of the product itself. It is the image on the label of the product that has ‘my’ image.

Is there any way to tell if the image was created by ChatGPT trained on my original vs a more directed prompt or even someone uploading my image as a model for what they wanted?

Thought I would ask here before deciding on the proper wording for an email to the company head.

Notably, they had used my image in a prior ad without license a year ago. They quickly paid for the license after I brought it to their attention.

[update] Just found another of images with a cartoon filter used on another label for one of their products. I plan to email them but am honestly a bit stuck on how to price these infringements for commercial use. I have licensing for social media, save the date, holiday cards and website usage but not this.