Bad customer service

I bought clothes at Markham Lakeside benoni as a gift for my brother. Only to find a few items didn't fit, the one item still had a tag on it. tried to exchange the items in springs cnr 5th Avenue and 6th street. The reception from the store manager and her was appalling. I walked in the went straight to the counter as there was nobody at the door. While standing at the counter one gentleman called for my attention "ek se" at first I didn't realize that he was addressing me. I only walked towards him when he shouted "ek se" louder. Walked to his till and explained my situation, he called for the manager Eva, who was quick to dismiss me "go grab what you want and come back" indeed I went to the floor looking for other items. When I got back from choosing new items she informed me that they did not have a magnetic remover for the one binny and that I had to return back to where I purchased the garment. I requested her to check with Markham from springs mall if they had it she refused to do so. Telling me that it isn't her fault that the people in Benoni where negligent. She is not going to exchange the garment for me cause she won't be able to sell it. When I asked her to call the store in springs mall she told me to stop wasting her time as she had other clients to tend to. Took my original till slip, made me a copy shoved the copy to me and walked away . Date 02.06.2021