I definitally agree that it's not a super pastel.... in fact that female looks identical to my regular pastel male....... so I know it's not a super.
Supers have ton of blushing and fading such as the one Chkadii posted. Regular pastels if high quality look a lot like fireflys.... and IF it's a high quality pastel, it should never be more than $150 for a AWESOME female (usually a proven breeder), unless the breeder is greedy (or dumb)
Either way, you're dealing with a sketchy person. Ametuer BP enthusiasts can always tell a Super Pastel from a regular Pastel... or super ANYTHING from the regular. This person is trying to market and sell to ignorant and excited people (or just has no clue about BP's and morphs at all, which may mean they aren't very quality with husbandry or so on), and I wouldn't buy anything from them if I were you.

but I'm just throwing out my pessimistic point of view.
If you have faith in this guy or gal, then good luck with your new purchase.