Question on how to contact Congressional Represenatives

I am doing my capstone in my senior year at the University of Arizona. I am working on a story on a bill that could affect veterans in Southern Arizona and nationwide as the local media here has not really talked to much on it. I have written emails to both Senator Mark Kelly and Rep. Juan Ciscomani's press office but have not received a response. This is for the community newswire service. Is there a better way than email to try to contact them since the House is not in session now until after the midterm election.