What is the name of your state (only U.S. law) CA

I have a problem with a insurance company paying my claim here is the story
I just bought a bike and the next day what we think was the construction company tipped over by new street bike ( motorcycle ). I just got full insurance on it the day before and so I called to report this accident because there was a significant amount of damage(8,470). We did not know who was at fault for this so it was going to be filed as a comprehensive claim. Its been about a month already and its like pulling teeth to get a hold of the adjuster and reps. The company is now asking to speak with the previous owner and the previous owners father ( the father has nothing to do with it and did not own any bit of the bike ) and on top of that is asking for mine and my brothers statements and asking me to file a affidavit of vandalism to the local police department and asking for my bank statements that shows proof that I paid for the bike and the bill of sale aswell. I have provided all that they asked for except to speak to the previous owners father too me that's a bit absurd I am not friends with the previous owner nor his father and they already wrote a written statement saying how much I bought the bike for and the the condition it was in when it was sold I dont want to keep harassing them for "statements"... what can I do to speed this up? or what should I do to escalate this?



I have already called a supervisor
I have already sent the rep a email regarding this slow process and the lack of communication