Corona Open pathetic

I attended the Corona open in Jeffreys Bay today and the Boet Erasmus was offered at the Corona stall at R 185 per bottle. I offered to bye 9 bottles. I was told that the price was wrong, they changed it to R 235 per bottle. I agreed to still buy it. I was then told it is not for sale and was threatened to be banned to the festival if I put it on the internet. The event organiser, Ari Kraak was so wrong and do not uderstand the consumer protection act. This is so bad for our local community.