Refused to refund and exchange ,criticize,insult

i went to legit to get refund for clothes which were big a lady called lucy with blond hair style refused to refund me she gave me attitude and made me go home for thank you card i came back the following day (Friday) with thank you card she treated me the same way telling me that edcon does not refund or exchange,she made me wait on the side for some time saying that she has to call the manager.She took me for a fool and showed me the gift card policy saying is the refund policy she told me to leave because she is not going to help me she kept on helping other customers while she made me wait,she then helped me when she saw that i was not going to leave,she then called me dumb for making a mistake while signing on the digital signature device,furthermore she criticized me by taking on the phone with a colleague in my presence and told them how irritating i am,I am tempted to call radio stations and make people aware that the edcon stores does not do refund s or exchange i believe it is only fair that the store rights this in bold so that we know that when we buy at their store the is no refunds.I will not allow anyone i know to go to edcon/legit stores