"Upon learning about the frame damage, and observing the body shop's procedure to correct the frame damage, I am extremely uncomfortable with taking possession of this vehicle again, as I believe it is now, and forever, permanently damaged in a way that affects its ability to drive safely." -- given that neither the shop, nor Tesla, agree with this assessment, why would the insurance company listen to this argument? The shop is doing all sorts of expensive stuff (parts and labor) solely because Tesla says they should, so clearly they are not trying to do any sort of "minimal" job here, and they (the shop) insist that everything will be right as rain when they're done, including having Tesla service go over it for final "approval".Hi, you took my car in for what appeared to be cosmetic and mechanical issues totaling $X. You've had the car for ## months now, and per the first supplement the cost to repair (and subsequently the time) went up to $Z. Now, via a Sup2, we're looking at frame damage, which is an additional $Y, not to mention time I am still without the car. Based on how this car is marketed, I am aware of it's all aluminium body construction as well as its high strength steel sub frame. Upon learning about the frame damage, and observing the body shop's procedure to correct the frame damage, I am extremely uncomfortable with taking possession of this vehicle again, as I believe it is now, and forever, permanently damaged in a way that affects its ability to drive safely. Can you please explain to me my options for proceeding?
Something like that.
As for any monetary arguments, it is hard to see how I'd be bringing anything to the insurance company's attention that they're not already fully aware of. I mean, it's their money, after all. As for the time it is taking, it is hard to conceive of something that weighs less heavily on their minds.