Main Street Insurance Low balled estimate of my totaled car

This is by far the worst insurance company that I have ever had to deal with. My car was hit by a deer and totaled, and their appraisal was much less than current rates. I was told that I had to furnish cars for sale if I wanted to have the number changed. I provided 5-10 current cars for sale, some more than 4K more than their appraisal. I furnished Kelley Blue Book as well as Edmund's numbers, non of this was good enough. This was going on for 45 days after the accident. I was then informed that I can go to arbitration to resolve this, at my expense. The arbitration would end up costing me more than the difference that I am looking for. DO NOT USE THIS COMPANY.