Car fully paid but dealer doesn't want to release it to me

Got involved in an accident on Nev 20. My insurance offered me an option to replace the vehicle.insurance did everything including paying the dealer which is Renault in Centurion. Now for a whole week I have been waiting to get the car. Proof of payment was sent to the dealer by Outsurance but still they don't want to release the car. It's story after another. They say the payment must reflect on their account first. What's the point of asking the insurance for POP & then when it's sent to you there's still excuses?. I fell so much inlove with Renault cars and the excellent service I have received from Navashan in Centurion branch has been outstanding. Someone please tell me from Renault head office why I can't get my car when it's been fully paid. I need an answer.