Wrong Price on Item

I was in Boardmans in Gateway on Saturday 27 June, I see a throw on a bed i liked, The price indicator on the bottom of the bed said the throw was priced at R349. So i asked the person walking the floor if this was correct, showing him the throw and the marked price, and he said yes, it is R349. so after repeatedly asking if it was the correct price i take it along with my other items to pay. once we get to the till, the lady abruptly says, no this was marked incorrectly, i cannot give it to you at this price. even after me explaining that we asked no less than 15 times if they were sure of the price on the floor, she was having absolutely none of it at all, it was as if she was prepared to argue. I must say i expected more of this store, I am very disappointed, not only was i reassured of the price repeatedly, i get to the till and get completely shot down.