Outsurance left me stranded because of parts

I had a car accident during Easter Weekend. My car has not been fixed because their service provider is waiting for parts which is understandable. However, what I don't understand is how they just left me without any mode of transportation after 30 days even though it's not my own doing. This is an unfortunate event and I understand that the courtesy car is for 30 days However as their client one would have thought that they want to assist.

What I got was an email that was not even expressing understanding of my plight. I was left stranded working on a project that was very important. It looks like I am going to be stranded for a while since parts are not ready. And outsurance is quiet about my situation and not willing to assist