I'm getting the interim payment sorted pending the review of value. So far it seems that the insurers don't have a response from the 3rd party and, being the same insurer for both parties, having not heard a thing yet seems odd. The chap said he thinks it's my fault entirely "You went into the back of it so it must be your fault" showing how naive he is and really should have got the story from the girl driving!
Muppets
In other news, EVERY time I've spoken with Aviva they have been extremely helpful, clear, patient and reassuring. I'd be happy to pay a bit more to stay with them than change insurer (though, of course, bargain with them first) when it comes to my next car.