misleading-makro silver lakes

I was interested in a lawnmower for R999 on promotion. checked the website and there is stock in silverlakes. called the makro line and there is stock 20 units. go to store and advised not on special and is r1400. showed the promo and then they checked and there is no stock in the store. wanted to take the demo as already drove there and wanted a better price as it has been through many hands and the manager the sales person called did not budge as it is on special they only found out as i showed them the add. not acceptable as i did everything i needs to do to drive there for nothing.