I'd expect they would be able to go by registration number, or the VIN. Have a go on this site that I found is handy for looking up parts and numbers, specific to your Nissan:
https://partsouq.com/en/catalog/genuine/locate?c=Nissan
Just enter the VIN Vehicle Identification Number (VIN), that you can see from the windscreen, when standing near the passenger side of the car.