Hello, I recently stumbled upon a big account (100k followers) that stole an image from my instagram (1k followers). I am 95% certain it is stolen, as what I do entails various editing, so there is no way that someone else could have done it exactly the way I did, plus it was posted few days after mine. I have contacted him privately and asked for credit and a shoutout, threatening to report him if he does not comply. I am wondering if anyone else has dealt with this issue before, and what are the best ways of handling it. Thanks.