Recently I was rear ended whilst pulling onto a roundabout.

I was in the queue at front, started to pull out then realised a car from the right was going much faster than first aticipated. I applied my breaks so as not to pull into its path and not force it to slow down. A fraction after I did this the car behind me hit me and pushed me forward a little.

I have no independent witnesses and no cctv. I reported the claim to my insurance on the day and thought it would be simple. I am now informed that the third party are claiming in reversed into them. I'm worried how this will go. I cannot afford my no claims going from a 50/50 settlement.