Empty Promises from Suzuki Centurion

Deon Gerber from Suzuki Centurion confirmed on the 19th of June that he will arrange for a sensor to be replaced on my Suzuki SX4. Since then I phoned and emailed him a few times. According to him he will arrange for the sensor to be replaced as soon as there is an opening in the workshop. This is now four months later and nothing was done.