Most people make the same expensive mistake in the first hour: they ring their own insurer. Here is what to do instead.
If the other driver refuses to give details, or you suspect they are uninsured, report it to the police within 24 hours. Take their registration regardless — that alone is usually enough to trace the policy.
If the accident clearly was not your fault, calling your own insurer first can cost you money in three ways.
Claim on your own policy and you pay your excess up front. It should be recovered later from the other side, but that can take months, and sometimes it is not recovered in full.
Until liability is formally settled, many insurers record the claim against your policy. Years of protected discount can be interrupted while that is resolved.
Insurers price on claims history, not just blame. A logged non-fault claim can still increase your premium at renewal.
An accident management company deals with the at-fault driver's insurer directly on your behalf. Costs are recovered from them, so there is no excess for you to find, and your own policy is left alone.
When you ring, have the other driver's registration and insurance details to hand if you were able to get them, plus your own vehicle details and where the car is now. That is enough to start.
One call starts the recovery, the courtesy car and the claim at the same time.