[luispedrocoelho]

But he did not purchase health insurance, he purchased travel insurance.

It seems to me that the whole thing is "I bought travel insurance and I thought I would be getting global health insurance, but it turns out it's really travel insurance."

I guess because the NHS is paid through your taxes it may not have been so blindingly obvious to someone in the UK that anything similar to what he is asking for would have cost at least "300£ per month" (and that is assuming he is young and healthy) instead of "300£ for 18 months".