Back in June, I rented a car from Hertz. We were in stop and go traffic. We stopped. The guy behind us didn't. Smack.

Now, Hertz is harassing me to pay for the rental, despite the fact that the guy who hit us gave us his insurance info (Allstate) and admitted his own fault in the wreck. Hertz is sending us threatening letters. I had an email exchange with the Hertz specialist that boiled down to the fact that he couldn't manage to get a hold of the guy who hit us, therefore we need to pay for the damage to the car.

Any advice on how I'm supposed to deal with this? Should I get my own insurance involved? Should I try to reach the guy who hit us? Should I contact his own insurance carrier? Very frustrating.