Confused

I went to Exact Jubilee Mall, I wanted to buy a dress cash.After standing in a very long queue I was told by the cashier that If I do not have a rewards card and I do not want to give out my ID number then I should return the item, those are apparently the TFG rules. I did not get the cashier's name because they don't even wear name tags . The rude cashier proceeded to tell me that I have to ask around in the store for somebody to help me out with a rewards card. My question ; is the TFG turning away customers who do not have rewards cards ,is the TFG forcing cash customers to have rewards cards , why does TFG not place a huge notice at the entrance that if u do not have a reward card please do not bother entering the store, A simple cash transaction at TFG turns into a very complicated process of giving out ID numbers .