Power Steering Pump problems of the 2004 Infiniti QX56

I have a 2004 Infiniti qx 56 with 88000 miles on it. On Thursday 2/14/13 steering wheel turned to the right at 180 degree. On Friday 2/15/13 slip indicator and vdc appearred on the dash. Called the dealer and told to bring in the vehicle. When I got to the dealer the steering was completely lost. The steering wheel turned to a 360 degree freely and the tires did not move. The service dept. Came back and told me that the steering column/shaft was gone and would cost approx. $4000. 00 to fix. I contacted Infiniti consumer affairs on 2/19/13 and was told they would open a claim and hear back in a business day. I called on 2/21/13 and still haven't heard anything. In the meantime the vehicle has been repaired at my cost. At that mileage and the top of the line vehicle of Infiniti I don't think that problem should of happened. I am grateful that I wasn't on the road 2 minutes more than I was because it could of been a lot worse. On 2/21/13 when I recieved a call from service that the vehicle is ready I was told that it also needs a power steering pump in addition to the repair stated above. I believe that is a safety issue with the steering.