*********** staff and misleading prices for consumers

I normally shop at Leroy merlin and I receive great service. So today I decided to visit the branch in Edenvale greenstone to buy lights which I must say we received great service experience with that department we had a lady and a gentleman that were very helpful indeed that made me then extend my shopping aim. I then decided to continue and shop for more items little did I knew . I decided to go into the bathroom department looking for bathroom carpet, the department didn't have any one offering to assist that was not a problem . We got what we wanted and went to pay .when the cashier showed me the total I was a bit puzzled why the total was high but decided to overlook that however I decided to recheck my slip when I got to the car I realized that the bathroom carpet was double the prize so we went back to the shop and went straight to that department to the same shelf where we got the carpet, the tag price indicate R329 then i went looking for someone to assist me with explaining why the shelf price indicated R329 and the slip indicated R699. The lady immediately started being defensive and insinuating that my husband and I moved the item from a different shelf to the shelf that had the R329. Then she called the department manager which already at that point she was just calling him to validate that we where wrong and the lady was right . With the same attitude he pulls an item carpet which was a carpet of the same label to show us that all items on this shelf are correctly place and we misplace the item to get the reduced price to alone proof us right as the item he chose from the same shelf that had a tag of R329 when scanned the price was R699. Clearly someone was *********** and left the shelf with a tag of R329 whilst the items had changed in cost . Both the department manager Rudy and his subordinate were adamant that we were wrong and we will not get what we correctly saw as the price. however after doing my research and also looking at the consumer protection act .I was treated unfairly and humiliated as this assistant insisted that we were trying to manipulate the prices. I want my money and I want the two employees to own up to their mistake. How many people get to be treated like this because you guys think we don't know our rights. If this is not resolved I am willing to take it further. Your items don't have price tags we rely only on the shelf tag to make an informed decision now you mislead me and expect me to agree to that . It is unacceptable.