I used to work for RAC autowindscreens and for the payment my manager used to say that even if the customer was not happy they had to pay as it was thier contract with the insurance company not RAC.. Load of shit if you ask me, customer is number 1.
We used to make customers check over the car before paper work signed!
hope you get it sorted mate.. do a proper check at all inside areas of wing and down inside of A pillar trims..