Misleading customers

I went to Makro Riversands this weekend and was very disturbed by the services, I found a bluetooth speaker marked down and wanted to purchase it, the guy went to the back and told me he cannot find a box and cables as its the display item and the display items get marked down and put on sale when the item is no longer in stock, he then went on to show me a tv that was also marked down that was a display item and then went on to explain how he purchased his fridge for less that 3000 because it had a small dent at the back, i asked him if there were any sound bars that was going to be marked down because it was not in stock and he showed me a samsung sound bar that was priced at R3400 but he said they would need to look for the cables as they cannot find it, i asked him around what price it would go for and he said about R1600, being such a huge difference in price i opted to take this item and he said he would need to go check if it was definitely out of stock, he came back after checking and told me it was out of stock but they had 2 display units as they accidentally opened 2, being keen on the item i asked him to go confirm the price so i could pay for it, i told him i would come back for the cables when they found it, he then went away to check, i did my shopping and came back looking for him but he was no where to be found, they tried paging him and even phoned him, no where, eventually another guy came to me after waiting for so long to say that the guy who helped me (Goodwin/goodwill) said that they cannot sell me the item as they are getting stock of it????? Really guys??? why mislead me in the first place???? furthermore i still took the bluetooth speaker and when i went to pay for it at the multi media till the lady told me abruptly that i must go pay at the normal till even though i had 1 item. after a while she then told me she needs the supervisor and tried phoning the supervisor who didnt answer, at this point i was just standing at the till waiting???? she didnt even communicate with me as to what was happening!!!! such a aweful and pathetic experience.