Damage goods and bad service

I am utterly disgusted by the service i received at sportscene both promenade as well as cape town branch. Yesterday i bought me two t-shirts in cape town sportscene i normally dnt fit on my clothes so when i arrived home i saw both items was broken. Firstly how can one put these item on store rails to be sold and secondly why is the policies different at these two stores. Today when i wanted to go exchange it in the promenade branch the manager was all arrogant and made as if i am lying and i broke the t shirts. Who in their rightfull mind would buy brokem merchandise. The manager was not even hearing my side all he said the whole time was he needs to hear there side of the story. And after a long debate and i raised my voice he said that is unacceptable he is only trying to help me. Helping me is hearing what i have to say and reply i will try to resolve this and explain what the policy of a return items is. He kept on say he cant GRN this. And making it out to be my problem i bought these broken merchandise so i must just take the problem back to cape town. This is surely poor service delivery. Poor management and lack of knowledge to the process. And i told him im not leaving without having my money back