So, so convincing, it was only when I was about to hit "pay" that I looked for the price - saw that it was £110 in tiny, tiny faint writing on the bottom right of the screen and realised it was a scam site.
Google does print "not a government website" under the link but my eyes just glossed over that.
I am generally savvy and careful, please take heed if you are travelling to the USA!