Outsurance settlement offer

I recently logged a third party claim with Outsurance - Claim number *** The Outsurance client caused the accident by attempting to make a U turn in a double one way lane. I have sent video evidence/footage to Outsurance to confirm the incident. The Outsurance client claimed that his vehicle CV joint popped out and he started swerving uncontrollably. He then swerved into the other lane and my vehicle " hit him". It is very clear in the video that the Outsurance client slowed down came to a complete stop for about three seconds and waited for all the vehicles to pass before pulling away quickly to attempt to make a U turn and caused the accident. Outsurance then sent me a settlement offer and were only willing to pay 60% I refused and told them that their client wasn't telling the truth and I will not accept the offer. The offer was inaccurate and incomplete. I sent them a revised settlement offer because for some reason the OUTSURANCE Accessors did not include all the parts. Especially the expensive parts.After a few days Outsurance sent me a new settlement offer, but once again only willing to pay 60% of the settlement amount. I then went and got a copy of the Accident report/ Affidavit of the Outsurance client. I emailed Outsurance and explained that they have the evidence to prove that their clients affidavit was false and they should revise the settlement offer, because I will not accept the 60 % that they are willing to pay. The accident happened on 29 March 2025. On Friday 9 May 2025 I emailed Outsurance the accident report and asked them to review the settlement offer again, until now I haven't received any further feedback from Outsurance. I can't understand why Outsurance is still only willing to pay 60% if they have enough evidence and prove that their client made a false statement.