Hi just read your problem.
I needed a spare key for my newly acquired X type.
I know you are a good distance away but BESTWICKS of Derby "see website" are ordering me a key. Jaguar is one of the only ones they don't stock.
They guarantee a new key, cut and coded for £75.00. Of course they need you. id. and the car to do the job.
Hope this might help other folk.
There is a Nottingham company, 3D Autokeys. who do the same but at your home for £130. they cover a 40 mile radius from Notts.