Only for the unpaid portion of the first insurance policy. For example, if the first policy covers 80% following a $500 deductable, you can file for the remaining 20% and the deductable on your insurance policy.
What do you mean by dual insurance? You cannot have two auto insurance policys on one car. If you mean can you claim damages (let's say) from the 'at fault' party and then also claim them under your collison coverage, no you cannot.
First, call your insurance company to confirm what their protocol is. You will either need to get a few estimates from auto body repair shops, an insurance adjuster will estimate your damages or both. Once you have the proper estimates, you can submit the bill to your insurance company.
The same as any other accident. If you have damages you submit a claim. If you have no damages then there is nothing to claim.
If you want to use it, of course. But you are never required to submit health insurance to anyone.
If you have auto & health insurance...
I'm not a lawyer, but in layman's terms: Subrogation is similar to a right of reimbursement in that for example: YOUR Insurance company pays for your medical bills and/or property damage because the person causing your injuries/damages has no insurance. YOUR insurance company then has the right to pursue that person to get reimbursed. They "step into your shoes" to sue or try to obtain the money you would have gotten to pay for those damages, but your insurer paid them, so they have your right to get the money back they already paid on your behalf. An assignment is like you giving away or assigning the right to collect some amount due to you in the future. Such as when a doctor is about to treat you and you sign an assignment that the doctor will file and collect directly from your health insurer, rather than you pay the bill and submit it to your health insurer and wait for them to hopefully reimburse you for the money you paid.
Yes that is how it works. The mechanic may also submit info to them once he sees the car.
The first thing you should have done was call the police so that you'd have a report to submit to your insurance proving someone else was at fault. Barring that, you can still submit a claim to your insurance. If you know who damaged the car, you can settle it without insurance, but it's not recommended. People often agree to pay for damages until they get the final bill, which is always more than they expect. Then you'd have to sue them for the money in civil court. The other option is to simply have the damaged fixed and pay for it. But your best bet is to submit a claim to your insurance, who will go after the person who damaged your car, assuming they can track him or her down.
It is up to the driver to subit the auto accident claim. You should submit the claim as soon as possible after the accident.
Once you submit an auto insurance claim can your provider deny it?
appeal to secondary insurance
Whoever hit it, assuming you were legally parked. If you don't know who hit you, you simply have to submit a claim to your insurance. You'll be responsible for the deductable, but it'll probably be less than having to pay for repairs outright.