I can totally understand your upset and anger. I recently declined inclusion in a fanzine that charges for 'downloads' not just the cost of printing and shipping, because my work has always been posted for free and I don't want anyone else making a profit from it.

I have Google Alerts set up for my alias, but in this case it wouldn't have worked for you because the seller kept the author's name out of the description. I hope you get a response from them that will help shut that down.