There are a few colours on the Mk7 that look different in various light settings. I thought Limestone grey was the mk7 grey colour, until I saw one and it was a light brown, fine, but not for me on a GTi.
You need to see the car in the metal to decide.
I would be surprised if that car does not sell over the w/e with that spec, price & warranty..... if it's still available next week, I suspect it is down to the marmite colour?