Dismissive & Unhelpful Outsurance Claims Handler

Why do claim handlers have to be dismissive and Unhelpful? Had an accident with a Sixty60 Bike on the 26th April. We understand processes, verifications etc etc.so the claim was allocated a claim number about two weeks ago. All necc docs were provided. Photo from Google maps was sent with initial claim to Pingo Services showing where the collision occurred versus the bike drivers version. The bike driver.... Overtook on the left hand side of the vehicle, onto a pavement, and knocked into our car while we were turning left..... There has been no inspection in loco..... And the claims handler just keeps saying 'my driver said u were turning right' and we won't be paying. Photos show the direction of my car.... Photos show where the bike was.... Photos show our car was passed the alleged intersection.... Yet the claims handler just won't listen. We had waited so patiently....only to be treated as such.... And who overtakes on the left hand side??? There is a light pole to the left, a meter box to the left... And a pavement in front of of three home businesses.... Yet the bike driver decided to overtake on the left! And now Outsurance is repudiating our claim for a driver who is clearly reckless and negligent. Plz can a senior manager look into the merits of the case. We are willing to meet on site as well.. Thank you, claim no. ***.