Yep silly dealer and silly me.
I was convinced the emergency proceedure would work though. (It didnt)
I think part of the problem was they rushed it for me being the first X out and all and perhaps misplaced the 2nd keyless device and ofcourse I was too eager to drive off with it.
Emergency proceedure:
Inside your keyless entry device, there is actually a physical key that you can unclip take out to use to open the doors and attempt to start the car. However the keyless device is still needed to attach to your physical key to get past the factory immoboliser. Problem. If your keyless device is Kaput then youre stuffed.
Will update shortly with what the dealer comes back with.