Cosmetic enhancement is not available on the NHS and hasn't been for as long as I can remember.
Yes there are Plastic Surgeons in the NHS but they're there for disfigurements, scarring following trauma or, say, excisions of cancerous lesions...they don't offer there services to people seeking breast augmentation or rhinoplasty.
I do feel that anyone who has paid into the system and has a medical condition whereby they cannot naturally conceive, they deserve medical treatment for that condition, and if that means in vitro implantation...so be it...
Oh, and tourists don't get freebies from our health system - they have to pay!