Register to vote: https://vote.gov
Contact your reps:
Senate: https://www.senate.gov/senators/senators-contact.htm?Class=1
House of Representatives: https://contactrepresentatives.org/
Register to vote: https://vote.gov
Contact your reps:
Senate: https://www.senate.gov/senators/senators-contact.htm?Class=1
House of Representatives: https://contactrepresentatives.org/
The post literally links to US government sites, so I am hopeful you’ll be able to sort out this mystery