Terrible Indian lady manager

I went into the Pinecrest mall and showed a worker my items which are loose size, slightly big and material is Chinese cheap like which is coming out things like on the arms so he told me to pick other items after having a look at my items.

I spent close to 30 minutes looking for other formal items equivalent to my amount but most had cheap material and store was about to close. I finally found a dress and a shoe and went to the counter to pay, only to encounter the same nasty Indian manager who flattly refused to let me return the item saying I had worn it since the docket was detached and it had dirt in armpits which I presume is my sweat or perfume which went on it after I had put it on properly at home. She refused to listen to me in such a way that even my 4 year old son said "mommy I don't like that aunty, she never listened to you, Jesus will make her pay". She jumped to the conclusion that I used the items and refused to exchange it for me yet I just bought it last week. I am an account holder with truworths and benefit well from my account. I don't need a refund. I just need an exchange and have dockets, receipts and the items. The new Indian manager is downright ****** and looks down on a certain calibre of people because each time I go to that store she gives me the same rotten attitude. Why me? I always walk out disappointed from that store and I'm spreading the experience of bad customer service I got all over town