Promoter with bad attitude

My boyfriend and I were entering this win a S6 competition in Sandton City by the checkers court. What happens is you answer the the questions on the paper and get a stamp for it in order to move on to the next level. Instead of this promoter giving us a stamp he decided to act all cool and asked us irrelevant questions that aren't even part of the competition just to impress a few girls around him and when we couldn't answer he told us we aren't educated and we need to be educated. I was so angry thinking how does one get off to tell someone they aren't educated. All the other promoters were really good except this one, wish I had taken down his name. I'm so disappointed knowing that I'm a loyal customer to Samsung and I got such attitude from a promoter.