Hello, 4 months ago my vehicle was in a collision. Ute was parking in car park and another car came round the bend in the same car park and smashed straight into my tail light. They then got out said sorry and took off. We waited incase they came back to get exchange of names, plates details etc. Due to almost no damage but a slightly bent back tail light we left it at that. A month or so later we got a call from the police station saying there was a report of a collision and failed to give details and was told I had to give my details over which I did and explained the other driver took off. We had no details and no evidence of any damage. 4 months later I have been contacted by lawyers stating they are coming after me for damages caused. I have no info on who they are the car or any damages. What do I do? Who was at fault and why did they take off after apologising?