Unable to resolve problems with car

Three months after purchase, problems began to surface on our Golf DSG. After many attempts at diagnosing what we experienced, the steering mechanism was replaced. We reported a vibration on the car. The dealership was unable to experience this problem after having the car in many times, and stated that the car is faultness, meaning our complaints are baseless. The problem was escalated to VWSA, who concurred with the dealership that no problem existed. Another dealership diagnosed the problem within minutes of me explaining what we experience on a daily basis. The car was booked in at this dealersip and they confirmed the problem. VWSA and Rivonia were informed of this, however, non responded on the way forward. I called VWSA to speak to Rolandi, but she was not available. VWSA claims that they pride themselves on customer service, however I have seen none. Their famouse line is: the car is within specifications. <br> Is there anybody at VWSA or Lindsay Saker who give a damn about customer service?