Worst car rental_Europcar

Recently I met an accident with Europcar. They decided to do an investigation with the 3rd party without consulting with me or getting the police case statement. They did their own assessment of the damages and what do you know... slap with a bill. I tried to speak to the 3rd party department with no help and in fact a very rude woman who made it all my fault. If i am honest, they are probably trying to benefit from the payment to the 3rd party whose repair claim is 50% of the worth of his vehicle.