Waiting 4 weeks for an approval of a claim

I was involved in an accident on a Friday night the 18th Sept 2015, I reported the matter and was told I need to call on Monday morning. I reported on Monday morning and had to wait 6 days to get a courtesy car, my car was then only towed to panel beaters, I was then told an assessor will come to assess the car and give feedback. The assessor attended the car on the 09th Oct, he called and told me he finished with assessing, the claim will now be referred to the manager to approve. when I followed up with the claims department every time I'll call they tell me \still waiting for the manager to authorize"and that answer just drove me crazy every time and said to myself what an unprofessional service they have. The claim was only then authorized on the 16th Oct and referred to the panel beater but with some items removed from the list that the assessor said must be repaired. The worst of all is that how can you say the radiator must not be replaced if it was damaged in an accident? Why do they send an assessor if they are going to over rule him on what needs to be done on the car? The panel beaters referred back the claim to them and am still waiting even today (29 October) """