Hang in there....
I had a similar experience some years ago when an errant WVD side smote 'er indoors new Polo; his company denied any liability.
I used a company specialising in claims, rather than my own insurers who to say the least were 'lily livered'. We ended up in court, he failed to show, despite telling me repeatedly he was going to win and giving me the aggressive finger on a daily basis. The judge wasted no time in finding for us and he ended up with a CC judgement against him for the full cost of repairs and all our costs, including my 'uninsured losses'.
I hope he wasn't needing credit or a mortgage for a while?
To$$er!