When a repair shop damages your vehicle.and your insurance don't step up to recover your cost.

I was driving home from visiting family out of state and a rock from another vehicle hit my windshield and cracked it. I reported to my insurance and they said it was ok to take it to a near by shop that replaces and repairs windshields. after the replacement I noticed the shop had damaged my vehicle and the windshield they had put in had slid down leaving a open gap on the top of the windshield. I called my Insurance they arranged for a mobile service to come look and fix the windshield. The service tech said that the shop had not put any adhesive and they had installed the wrong windshield . I paid a $500.00 deductible and the insurance company arranged for me to take it to get repaired. The insurance company said that I would get my deductible back as soon as they go after the shop that did the damages. About 6 month go bye and I get a letter saying the person responsible for the incident appears to have no insurance so they are closing the case.