My daughter's Renault Clio was hit in the back at a roundabout exit by a Ford Ka. The Clio sustained some damage, my six year old granddaughter and her friend were very upset and crying when this happened. The driver of the Ka offered his phone number to my daughter but nothing else. My daughter was more concerned with the kids, so she was satisfied when the driver of the Ka admitted liability and promised to pay for any damage. My daughter did get a witness name. The Ka driver has since been unobtainable. The damage is only around £400 and my daughter is reluctant to contact her insurance company because of excess and rising premium costs. I have now found out his name and address but I'm unsure as to what to do next. Any ideas would be gratefully received.