Berry RFO Alex Mall ,Bad Customer

I went to buy a black skirt ,it was marked down, when I greeted the guy he kept quiet,then he scanned my item & gave me a slip, when I ask him why didn't he ask for my Id number for rewards,he said to me,it's useless to ask for it bcoz it's on sale and it makes no difference,I asked him again thinking he'll change his statement but no ways he did not,I told him that it doesn't matter whether the item is on sale or not he should have asked me,he never apologized,I don't know maybe it's because we are in Alexandra,his service is very poor or maybe it's their TFG/RFO policy.