Echelon is an insurance rip-off!!!

Had a motor vehicle accident in June 2021. Car slipped and lost control, hitting kerb and wooden railings. There was extensive damage to the front of the car. It was taken to SMG Car Repairers and an assessor came a few days later. Repairs were authorised, but there were delays with receiving some of the parts from the supplier. Since it's been almost 3 months without my car, I decided to go to SMG to check on my car. I immediately noticed a crack on the windscreen on the driver's side, a crack on the glass roof in line with the crack on the windscreen, a dent and scratches on the passenger window. These are obviously as a result of flying debris during the accident. when I enquired why they were not attended to, I was told they would notify the assessor. No feedback has been forthcoming until I called SMG today. Only to be told that the assessor came and said he will not authorise the repairs as the don't fit the description of the accident! Really now!!! What nonsense is this?? Are they not hiding the fact that they didn't fully inspect the vehicle? These defects are easy to spot if one does a full car check! So now I'm being made liable for someone else's sloppy work?? Was I really expected to notice every kind of damage to my car at the scene of the accident?? This is ****************!! These 2 companies need to be exposed for this!!