I'm not sure if this is the right approach - adversarial legal action with a company such as Nikon, on issues such as these, is unlikely to result in the outcome for which you are hoping - although I am not sure what that is! Normally it is only the attorneys that benefit to any significant degree.
Working with Nikon, one to one, at the appropriate point of contact, is problably likely to be more fruitful.
I, for one, have done that, and so far I am satisfied at the outcome. Patience is the virtue in matters such as this.
Most people won't be coming to the end of their warranty period for another 4-6 months or so. Patience!
When words become unclear, I shall focus with photographs. When images become inadequate, I shall be content with silence. - Ansel Adams