I have learnt my lesson don't buy live plants over the internet.
It arrived as about three or four greenish leaves (not the vibrant red colour of the picture and certainly not the quantity.)
Sighing slightly in disappointment i put the meager pathetic things in the tank.. never really noticed it growing or doing anything until i noticed it wasn't there anymore a few weeks later. Either one of my fish ate in disgust or it died and sank to the detritus on the bottom.
Lesson, go to a shop, see what your buying, then buy it.