Midway, white collar *********

I'm a 3rd party 'victim'. A Midway insured client drove into the rear of my vehicle. On my way home, indicating to turn, and almost into the turning (also had to slow down due to speed bumps), I got smacked from behind. Reported incident at the police station on the Saturday morning, with the perpetrator, submitted all paperwork on the 9th of November. A month later, after me emailing and calling, I eventually get an insulting offer. Further to that, get told I have to wait another 30 days for the insulting payout. I'm not sure of all insurance companies work in this manner, but I do believe they really needed to be taken to task. Any suggestions?