Pathetic service

My Vehicle was in a accident on the 16th November. It took the insurance 2weeks to sort out a dispute on access. Claim was Only approved on the second of November and today is the 23 November and the body shop is still waiting for parts and they are fully booked till middle January 2021. I constantly have to beg for progress and nobody gets back to me. The lady that has to give feedback does not seem to care. Just to give you a view I was on the line with insurance spoke to a lady at progress claims and I have been on hold for longer than 25min. looks to me like the the insurance did not seem to take me the client bests interest at heart. the should have asked the body shop for turn around time for repair on the vechile. it seems like this is a friend of a friend that is why a busy body shop gets to do the repairs. i keep on phoning the bodyshop and same story every time. they still waiting for parts. I have asked the insurance to deal with them but with no luck.