The operator will admit liability
This was not your fault so stop doing the other party favours and let your insurers deal with it.
Two truths right there. It did sound like the manager covering up for his deputy and trying to clear it up cheaply using a local body shop. As soon as it came down to courtesy car and the work being more than a simple touch up they said go through insurance. We did that and our insurer called the company got the story from them and within a couple of hours it had been arranged to get the car collected and a replacement car of the equivalent or better standard. Got a crossover fake 4x4 in the end.
The company or their insurers accepted liability and there was no hassle. We even got an excess waiver too so it really is not costing us anything more than the time to sort the car swap over. We now have a sub 1000 mile brand new car to try out for a couple of weeks. Man are we going to rack up those miles at the weekends (we do not use the car much in the week). It seems to be more economical on fuel than our car just handles more like a dog than our car.
As far as informing the insurers i have always done it in the past when it is not my fault and the person is offering to pay up. i was just leaving it a bit to see what was going to happen. Basically if they were going to sort it out to our satisfaction quickly then i was going to leave off telling the insurers until further down the line and it is being settled. Not sure why just worried i guess that they might be awkward. At least there was no way it wasn't their fault so I would have ended up with it being fully settled in my favour sooner or more likely later. it just looks like Peter H is right, they just settle in these cases.
End of the day we live and learn. I will bear that in mind next time it happens. Joking, I think the house getting the deliveries is nearly finished but if they do ever deliver down past our house I am sure another hit is a distinct possibility. Turns out our two neighbours had hits recently, one a car the other a moped rider. In all the decade plus I have lived there I have never seen a car being hit on that part of the road before but in the space of a month 3 hits. We're parking along the road from now i think. There has been a lot more vehicles along the road parking. Incomers with vans are a real problem plus more cars (think some have 2 cars down this road without the space for them).
Thanks for all your comments.