Disclaimer: I am not a lawyer, and this is not legal advice. Following are public contact points and information sources.
To contact your Congressional representative’s office quickly and directly:
https://www.house.gov/representatives/find-your-representative
More Resources: The following are not instructions, nor recommendations. They are public information sources for people who may need to understand or locate federal offices, but who do not need immediate assistance.
National Association of Attorneys General – Consumer Protection Divisions – State AG Directory:
https://www.naag.org/attorneys-general/
Official Federal Agency Contact Index – an A-Z Index of U.S. Government Agencies:
https://www.usa.gov/federal-agencies
FOIA (Freedom of Information Act) Portal:
https://www.foia.gov/
American Bar Association – Public Resources:
https://www.americanbar.org/groups/public_education/resources/