Insurance Co,trying to deny a claim,saying they have not established liability

Nov 2019, we had our truck at a shipper loading freight ,on to a flat bed.It was Cam Am's. the crates were to large to come out the building the correct way,on to a flatbed,so they slide them out the door another way.
An then on to there flatbed,then take a large outdoor forklift an put it on to your trailer,the way it needs to be to fit on the trailer correctly.in the process the operator stabbed his 2 forks in my deck .(they always run with the forks pointed forward n down ,who knows why)
He openly admitted it to his manager,an his manager was suppose to write a report .this game went on until last week or so when i finely got fed up an filed with his insurance CO after my agent advised me. There are two claims in a months time. the last one ,they had ice all over there dock area, an parking lot. an when they were pushing a crate from the dock on to my trailer they pushed my whole truck an trailer ,it was empty, there was no ice treatment on the ground,like salt or sand.
So the forklift ended up pushing truck away from the dock an he dropped the forklift mass on my rear rub rails an destroyed them.
This same Manager asked if the Breaks were set ,I looked at him an said Are you kidding me?? you guys did not salt an sand.
so now this manager is denying that they damaged the deck since that is the larger bill, but is admitting to the rub rail. This clown,nor did anyone else know that i recorded conversations. an i have his employees openly admitting the damage to my trailer that they did.
So this claims adjuster from this CO, they use acuity ,has every thing that i had on the case including all recordings, yet is telling me she has not established liability. SO
Question #1 where do i take them to court?? i know we are mostly drivers not lawyer ,but someone has went thru this. do i do in my county of business, or were they damaged my trailer.
My claims adjuster told me to give up everything ,i was hesitate cuz i wanted fire power for court just in case, an it is going down the way i thought.
So over the course of 3 months after the original damage, they kept driving over the damage.(they could have drove around it) an messed up the deck a lot more, to the point the safety manager told me that i had a bad spot in my deck an they can not load me anymore till it is patched. I looked at him an gave him some mind. Since i been working on having them fix it.
After that i went an bought some White oak had it planed down to the right thickness an temporarily fixed it on the weekend costed me over 16 hours, welding in braces an other stuff,since the deck floor is one piece,an you take out a pieces there was no support in spots. I missed out on 1 load from then, had 3 hours rush hour drive time, i have money in supplies an time going to get supply. I have time an diesel wasted to take trailer to get an estimate. they could have just paid out of pocket an avoided it all.. the Manager is a moron IMO.i have them on audio for proof,an some pics. so some suggestions would be nice. oh an it is a small claim under 7000

 

we are done.we do not haul no more.

 

I have spoke to my Agent, to
file but then i have to spend money on the deductible,so i filed with them, we are going to hire a lawyer .thanks

 

Good idea, i will do that thank you for the advise!!