If you order from FBTS you should get the correct name/correct plant. It is a reputable company run by Salvia enthusiast gardeners. They send nicely sized and shaped plants too. 'Senorita Leah' is the only thing on the site that I questioned. I guess it's possible that different climates bring out different coloration but they seem a little too different.
Be careful, collecting the different Salvia cultivars can be additive!
