If you cannot come to a satisfactory agreement and you want the other party to pay for your damage you must go to the Magistrates Court nearest to where the accident took place and fill out the appropriate forms for the matter to be decided in court.
If the amount claimed does not exceed $12 000, the claim is called a minor civil claim. The claim includes the damage to the vehicle and costs reasonably incurred as a result of the accident. For more information about making a minor civil claim see COURT - SUING OR BEING SUED, Minor Civil Actions.
If your claim is more than $12 000, seek legal advice.