3rd party nightmare

On the 31st of January a dial direct customer smashed into the back of my wife's Kia Sportage. After a massive struggle I managed to get a claim number from them, it is now the 7th of April and the claim is not yet finalised and they keep telling me it will get finalised soon... lies upon lies upon lies. What am I to do? My car is smashed up and they don't give a damn. Why do these companies lie and keep staling? and most of all people, please don't step in the Dial direct trap.. Horrible!