Misleading advertising Sleepmasters

I'm very disappointed in the misleading advertising of Sleepmasters. I saw the Birthday special online. They advertised a qeeun duvet inner for R219 marked down from R299. When I got to the store at Westgate mall Mitchell's plain to purchase one they told it shows R299 on there system. So I questioned the sales person but he could not answer why it shows two different prices. Please do not ad something as marked down just to get customers to come to your store. I think this is very misleading.