Nissan Kempton Park

<p> I took my Nissan Juke for service at Nissan Kempton Park on the 19th of July 2017, left the car there 7:45 am and left for work. At around 14:00, I was called to say my car was ready. I fetched the car drove it back to work no problems, only when I drove home the car started having problems it wouldn't move, called Nissan and the sent a technician they then told me it's fine. This happened three times. Now the disconnected the sensors and the speedometer and they are telling me I'm liable for them making a full diagnosis which can coat R750 per hour. Hello Peter pls help?</p>