Coricraft Nelspruit refused to sell chairs with marked price

I'm not happy with the service i have recieved at Nelspruit coricraft, I saw an I term marked . The item was R2000 and its a display items and the item was reduced to R1400 and marked 50% off and the salesperson explained to me that the items will R700 each . When It was time for payment they told me that no it's 50% of the original price not the reduced priceand decided not to sell the items to me and the other two chairs I was going to buy them R1400 each, in total I was supposed to pay R4200 for 4 chairs and they refused to sell the chairs to me , while they are the ones who explained everything to me that's why I wanted to buy the chairs

I'm really really not happy about this because wanted the items