Terrible Service

I am most disgruntled at the poor service and lack of proper communication from Momentum. I had lodged a claim with them. I had an incident whereby objects were either thrown or fell on my vehicle from a bridge that I was driving under (I did not see what it was clearly as it was dark and raining and I did not stop as I was scared and believed that it may even be a possible attempt at hijacking). My windscreen was damaged and I immediately noticed that however only when I eventually stopped I noticed that the fender was also damage (both damages were on the left side). Momentum has refused to authorise the repair to the fender the assessor has stated that I should have stopped to view the object and damage. I had argued this point based on the fact that I was driving on a freeway and therefore could not stop (as mentioned above I would not have stopped also because it was dark and raining and believed it could have been a potential hijacking). I have called Momentum everyday now from the 14th of April but have received no assistance. The claims advisors say that they will review my claim and call me back but this never happens. It is not only the failure to authorise the damages but the absolute poor service received that has made me so upset. I call and receive no assistance at all. My calls are even disconnected at times. I am so so very disappointed and would never recommend Momentum as an insurer purely because of the very poor and may I say pathetic customer service.