just got of the phone to his mum and she is saying "No you dont have to have his details you need to speak to the other boy that him as it's his fault not her sons" yea righto so had to spend 1/2 explaining how it goes and I'm going to leave it with the legal department 2morrow as I paid £25 extra for things just like this!
ps her sons bike has about £300 worth of damage and he's only been insured since Saturday