Poor Claims process

I completely don't understand why a third-party claim must feel like a life sentence, I submitted a third claim months ago with no progress as to at which stage the claim is, having to constantly call and being told is being sent to management for review, this is rather tiring and frustrating, them demanding the necessary information from me at a very unacceptable speed only for them to take me from pillar to post, having to drive around with a dented car as if it's my fault that their client bumped into me.