Yes, you have, do not let them take the vehicle away under any circumstances. Value the vehicle (www.honestjohn.co.uk/used-prices/) and get the highest value you can. That is your target point. Then obtain a quote from your preferred repairer, and ask them to provide an estimate. Then ask if the can repair the vehicle for less than the market value. If you agree to using second-hand parts, this should then make it viable if the car requires a door. Alternatively, request a cash in lieu settlement at the cost of repair inclusive of VAT based on these costings, at less than the market value.