Bad response from claims department

This has to be the worst insurance company I am dealing with by far.why ? Because I was involved in an accident which was clearly not my fault or negligence on my part in any...nearly having a road rage with the other party involved due to the fact that he failed to provide me with his contact details leaving me speechless after the driver insisted that he has given me his drivers license card as all the information I needed...I advised dialdirect that I am unable to get the drivers contact number because he jumped in his vehicle and left the accident scene leaving me with less in formation..I called dialdirect and explained to them what had happened..they told me that I need to get his contact number in order to validate the claim...like what the hell..I gave them the persons drivers license detalils and even the picture of its..they still insist that I do their work to find the person And get his number so they call him to confirm the accident... my safety and the property thats insured does not matter to the insurance company when there is a claim..but they very quick to debit my premiums and ask for excess which 8000 rand for something that was not caused by me but a rude and arrogant person which fled the accident scene while gathering informations...I cannot pay excess for my damges that I am paying insurance for which is 1500 a month ...only to find out that I need to claim from that persons insurance if I cannot provide a phone number andn my claim being invalid for that reason... I cannot do their job after me reporting the accident at the nearest poloce station.dialdirect needs to furnish me with a valid reason why they cannot get hold of the persons insurance and claim for the damages before I pay the excess and not have guarantee I will be compensated for my damages...