D800 Hue Calibration for $30?

Hi I'm an NPS member and I was recently told by another member that I can send the D800 in and have the LCD calibrated for $30. The LCD exhibits a green/yellow hue, which is especially evident on wedding dresses. I've just been ignoring the color problem, but hey if they can fix it I'm all for it!!!!

Does anyone know if Nikon really can correct this problem for a mere $30? I emailed NPS. They said they couldn't answer questions and told me to call a number. A kid answered when I called and he had no idea. I'm not sure if he knew what an LCD is. He literally could not understand the word green. He made me repeat 10,000 times, haha