Kfc is ******** people by wrongfully advertising prices

They had a promotion of 5 pieces for R5 online...I tried ordering since 5am but the order kept on saying error,i phoned their customer care and they told me that the promotion will start at 9AM...by 9AM i started ordering but it kept on saying error ...what made me curious is the fact that people managed to buy from 5am and they posted on social media yet the customer care people kept lying to me saying the special will start at 9AM...