I've found that these days some companies are more responsive to complaints on Twitter and other social media than anything else, they certainly aren't concerned about your email.

They don't want their clients, or in the case of SSTK... investors, seeing a parade of negative social media. Twitter is especially good for this. I just used it to get the attention of a business that had done me wrong and got a phone call with resolution.

You might for example on a newsweek story of clients taking advantage of the pandemic make a reply saying how photography has been effected too and how @shutterstock is a major perpetrator. Things like that. I did that for about two days with the company I mentioned before they gave me a phone call saying let's talk about this.