The only step you have left is to sue the driver of the other vehicle. Keep in mind, it is your responsibility to prove that the other driver was At Fault.
Then it's time for a lawsuit.
Let your insurance company/agent handle the claim--they will collect from the other insurance if there is a valid claim. You'll need a police report.
Same rules apply as if it was your own car. Make sure you get the insurance information from the person that was at fault and immediately call that insurance company and file your claim. The owner of the car will probably have to verify that you had permission to drive the car. If the other persons insurance denies the claim then the owner of the car will have to make a claim under their policy.
If they denied that claim for cause, such as fraud, then there is nothing you can do. If they did not have cause, you can try contacting the department of insurance in your state. That is of course, as long as you had comphrensive coverage on the policy. If you did not have coverage, they do not have to pay for anything.
Call the insurance company.
Contact the insurance commissioner for that state and file complaint
Stolen car that claim was paid off by the insurance company. The car was later recovered. Because the claim was already paid the car is owned by the insurance company and they will typically sale these at auction.
No, they will file a claim with their insurance company and their company will talk to your company. Assuming you swapped insurance details.
You have 10 days to file a claim with your insurance company.
You will use the estimate from whichever insurance company that is paying out on the claim. The adjuster from that insurance company will be the final decider.
Generally yes, it is called subrogation. Depending upon the circumstances as to WHY to coverage did not apply.
Information about making a claim on one's car insurance can be found on the site of any insurance company that sells car insurance. In UK, the Aviva website, for example, has good advice and guidance on making a claim.