I think you may be thinking of COPPA, but that involves sites targetted at under 13 minors which collects identifying information via "cookies" about the children.
Your issue is more like copyright infringement, except the photographer, not the subject, normally owns the IP/copyright (depending on if your contract had a "work made for hire" paragraph.)
There are also potential issues regarding right to privacy, right to publicity and other legal theories.
Personally, I would ask nicely and try not to depend on legal remedies.
Answered on Sep 17th, 2015 at 1:15 PM