Store manager too busy to attend

PNP Boardwalk. Sign on shelf was - Addidas male or female deodorant assorted 90/150ml R23.00 \Buy any 3 within the range and get 1 free"<br> Which was interpreted by me as buy 3 products and you will receive one of them free. after paying for the products I saw that only one of them was discounted. when I enquired with the front line manager Rita she raised the concern and asked the manager to attend. after some time I had enough and asked then to take the products back and refund my money. <br> Firstly store manager was too busy to attend. <br> Secondly the signage is very misleading.<br> Thirdly even though the sign said the products cost R23.00"