Welcome to the big word of Nissan dealer confusion Paul.
Basically, for many years now there have been the two specs, the base model and the GT.
The GT has the bluetooth, cruise control, alloys, bose stereo and leather heated seats. The base doesnt.
However, and this has always been the case, bluetooth isnt available in the roadster even though it is a GT spec.
Somebody clever will be along with a solution but the dealer is wrong.
Hope that helps