Auto and general poor service and desregard for its clients

First they gave me problems when i had to get a rental car. After they delayed my claim. Now my car is at the renew it greennstone which did not finish fixing it . The dealer is closed am dew to return the rental car and when i call auto and general they are telling me i have to return the rental car there is nothing they can help me with and stay without a car till the dealer opens in january .because they did not communicate the delay with them.