No feedback and assistance in writing off vehicle

My vehicle is financed through Wesbank and unfortunately it was involved in a car accident on the 28th December 2014 and the other driver was at fault, then a third-party claim was laid and an offer was made to settle the liability at hand and now when I seek help from Wesbank to initiate the deregistering of the vehicle I got a settlement letter which I sent to the insurance company and linked wesbank with the insurance and I was told this process should take maximum of 21 days, however 21 days elapsed already without getting feedback and when I call the wesbank specialised collections It never gets answered and my email for seeking feedback is not responded.<br> <br> I'm currently paying for a vehicle that is Beyond Economic Repair and deemed a write off from assessment and wesbank is delaying in assisting me.