Unhappy Nissan Magnite owner

Nissan's after-sale experience is appalling. I have tried to book a service on 3 occasions with Nissan to no avail. They purport to make it easier to book a service online via their website but on 3 occasions I've been contacted to see if I want more information in order to purchase a vehicle. On all 3 occasions I advised the person who contacted me that I am looking to book a service as I already have a Nissan Magnite. Please sort out your communication lines and ensure that we receive a call back from the relevant department. It is very frustrating.