I’ve had this happened to me before! Aa well know diving company had used one of my images from Instagram on their hoardings across the town 😂 and I only got to know it when my friend was visiting the city. I had to get in touch with them and well they apologised and offered me their Discover Scuba Diving Course as a compensation.
Hahahaha damn, I wonder if I should just contact that writer and told him that my instagram isn't for his commercial use haha. They should be taught lesson. There's another recent case in our country too like that and it's a big deal now. So, you gave me idea to confront them 😊
Oh yes you must definitely confront them and ask them to take it down or offer up a compensation especially if that person is making profits out of that image.