Thanks for this.
Additionally, it might be beneficial for folks to file complaints with the Washington, D.C. Department of Consumer and Regulatory Affairs [1], since the Internet Society is incorporated in D.C., and with the Virginia Department of Agriculture and Consumer Services [2], since its principle place of business is Virginia and is registered as a foreign corporation there.
[1] https://dcra.dc.gov/ [2] http://www.vdacs.virginia.gov/about-agency-directory.shtml