Call the dealership closest to you and ask to speak with the Nissan Consumer Affairs representative. These non-advertised people strive for your satisfaction (within reason) and are an advocate for consumers at the dealership level. Every dealership has one that they like to keep hidden away. If the first dealership won't get you in contact with one, then call the next dealership and let that rep know about the first dealership. They should be able to look up the contact info for nearby reps and get you in contact.