my advice is. whenever anyone runs into you. if they admit fault at the scene make them sign something on the spot, or even use your phone to record them saying it. so many times it happens, people say "oops, sorry my fault" then when it comes time to pay for your damage, or their excess or whatever they have a change of heart and decide to screw you. unfortunately you don't have much to do here. it's her word against yours basically.