I've got a similar situation to you. My car was bought from existing stock - no added options, great deal on it - with the custom brochure provided for the car pre-purchase stating that it would have the items you mention as part of the standard spec. At no point was it mentioned that actually having them would depend on the build week! I never noticed they were missing until I had taken the car away, but I'm currently in discussion with the dealer as a first step. I have no intention of handing it back, but I'd like the cost difference back or rear camera retro-fitted. Loving the car! I'll let you know how I get on if that helps.