Strange pricing in the Great Plains sale...

[Follyfoot]

Bought a lovely dress a couple of weeks ago in the GP Sale. Today it costs £39, earlier this week it cost £51. I paid £19. Why would sale items go up in price rather than down

Dunno, but this happened in the winter sale as well.
I've been re-checking the page (...which one of you sods had the Kaleidoscope dress out of my basket earlier, eh?) and the leggings I bought earlier this week have doubled in price, and the pleat dress has gone up at least £10. Very odd!