Horrifying Customer Service

I went to the Nike store in Sandton to fit a shoe size in their low dunks and they only had big sizes, I was going to purchase a shoe online so I wanted to make sure I get the right size, I was helped by a floor coach his name is (Shamal Bhagwandin) he advised that if the shoe gets delivered and it doesn’t fit me I can return it at their store. I purchase the shoe online and it’s big, I went back to the Nike store in Sandton and I must say I received the most revolting service from a cashier who is uncouth, ghetto and rude her name is (Portia Masuku) extremely ***********, very dismissive and disrespectful when I asked to speak to the manager she went and called the very same guy that advised me I can return my shoe. He came prepared and ready to fight because the cashier had already told her I want to complain as I was given inaccurate by that very same manager she went to call. He basically denied that he told me I can return my shoe, said that they are a franchise and aren’t the Nike company and they won’t be able to assist me in a very aggressive tone and even went as far as telling me I want to make my problems his and shifting the blame. I made it extremely clear that I am unhappy with their service because they lie and have zero customer service. Nike can carry on giving franchise rights to people who will literally bring their business down the drain. Those store athletes are definitely not on brand they should go work in ****a shops. This was my last time going into that ridiculous store. They never even have stock or size’s because had there been sizes I wouldn’t have ordered the wrong shoe size. I am extremely disgruntled!!! Pathetic service, if you want your day ruined go into that pathetic Nike Store in Sandton.