Bad service

We bought a 2011 BMW 320i two years ago and that car has been nothing but trouble. I suspect it's a code 3 vehicle and that was hidden from us. Nonetheless the engine of the car has now seized and when we bought the ar we also asked for a extended warranty. When we tried to claim we discovered that the policy was never activated. Andre Van Rensburg promised to sort out this matter and 3 weeks later we are still waiting for him to get back to us. He does not respond to our emails nor telephone messages that we leave for him. This is really frustrating as my husband currently is without a car and has to ask for a lift to work from his colleagues,