Bought CLA 200 Auto - Not happy with Vehicle

I bought a CLA 200 auto blind because they only got vehicle the Friday when I had to leave on a holiday trip. The vehicle was delivered late the Friday and I never test drive the vehicle. I phoned the used car manager at Kunene Witbank and asked him to look for a C Class with similar specs and price. He agreed that he will find me a vehicle and replace the CLA with a C Class with similar millage and year model. Since then two weeks past and he keep on saying that he will look tomorrow and on Wednesday 23 September 2015 he send me a photo of a 2012 car with 58000 km. This to me is not a replacement and now he say that he is doing me a favour to look for an alternative car. This is one of Mercedes policies that you may return a car before 14 day or 1000 km. I kept on saying to him that we will run over the 14 days and 1000 km. He kept on saying do not worry I will find you an alternative. <br> The reason are the following:<br> 1. The car will be used as a business car and I need to transport colleagues and customers in the back of the vehicle and no adult can sit in the back for prolong periods because of the head space in the back of the vehicle. <br> 2. Secondly the car is under power.