So I finally got a reply back from the person who hit my car, and how's this for a response:
"I've spoken to our repairer and in his opinion, the damage to your car looks to be preexisting and not being a result from xxx car. I will be going through our insurance and will be asking for an assessor to view your car to determine the extent of the claim. asking for my details etc....."
Seriously, what the f**k? Not only is the damage to my car clearly done by them, but I had a full inspection by state roads done to my car to confirm it was in 100% order when I purchased it a few months ago, and with the damage it's simply not possible at all that it could be there before.
What action should I take? I'm furious at the moment, combined with such a stressful week at Uni I simply don't have the capacity to deal with this...