CLICKS FOR SMELLIES

Clicks, Hoof Street, Oudtshoorn. I visited this store Las week to purchase perfume( Issey Miake). The price was advertised as R885. That includes the 10% reduction ,I was told. This morning,same store,same perfume( boldly advertised as 20% reduction special for Fathers day says the assistant).But, the price is still R885. Please help my Maths and Logic Clicks.