time wasters and refusal of assistance

I went to Edgar's to exchange t-shirts after long wondering in shop I get a consultant I explained to her that I need some assistance with t-shirts she subjected me to Edgar's active .I went to Edgar's active I was told there that they do not exchange things for big Edgar's however I went back to explain same thing the lady Dwena she told straight to my face that I must go exchange where I bought the T-shirt in Claremont they have refused to assist . I don't think I will come to shop again .I still need xxl in Levis or Guess and the special end tommorow .I will not rest up until my query is answered