Thanks, they had another 2 as well probably should have got them in hind sight. any way heres the story:
firstly i wanted pseudoras niger which was labled as £28 so the guy put it in the box and took it to the till, when i got to the till the woman says £70 i was like omg it says £28 and she said that the 2 was actualy a 6 ( it didnt look much like one) so i ended up getting the knife which was my second choice (only because i thought it was a rip off) and it turns out its not.