Not Able/Competant to service their own product.

The people that I have dealt with are varied as are the branches. I use to be a loyal Nissan Supporter and only serviced my car with the agents. After spending R29,000 with Nissan Northcliff to resolve a smoking issue the car still smokes excessively. Escalating this issue to their head office did not bear fruit. As of today I was informed in writing that should take the matter to the MI Ombudsman. I cannot believe that a company like Nissan has such a log regard for its customers. They made an error in diagnosing the problem (even though they had the vehicle for over a month). They should either fix the problem (which they are not prepared to put on record that they can) or they should refund the money!!