Bad customer service and an even worse staff

On the15th of May 2021 at 11:40am,I was at Westpack lifestyle Wonderpark,unhappily waiting for my balloons because apparently they have ran out of rose gold,plain pink and white balloons,basically any colour that I would have liked. Anyway I got there and there was a disorganised que of people,waiting to pay and receive their balloons,I even had a lady come after me and pay/order her balloons before me because it turns out I wasn't in the right form of the que. After ordering my balloons,I waited and then Khathu(I think his the manager because he was wearing a different colour shirt from the rest) asks me to please move because apparently a customer wants to pass,now I need to emphasise that on the right of me from the side I was facing is a whole family with letter and number balloons blocking the way and on my left is a lady with a whole trolley but yet,me,the person carrying nothing at all on them gets asked to move. I say no,my balloons(they had finished blowing them up and were tying them together)are right here so I'll move in a minute. He says "no,please move now". I repeat,I dont understand why the lady with the trolley or the whole family with balloons aren't being asked to move,so I ask him. He(Khathu) says "no,you are the only one that's already paid for their balloons and it's part of the procedure that after you pay,you stand outside so that when they are done they can come give you your balloons, the rest have not paid yet and that's why I didnt ask them to move",I disagree and say the lady with the trolley has paid for her balloons and yet now she's paying for her groceries at the balloon section,now keep in mind there is a disfigured que with a bunch of people waiting to order and pay for their balloons with only 2 tills and 2 ladies behind those tills taking orders while 1 inflates the balloons.How did it make sense that she hasn't followed the "procedure" as he says after paying balloons and now she's holding up the line because she's been allowed to pay for her groceries? I also want to emphasise the fact that before I paid for my balloons,there were numerous people who paid and waited at that exact same till for their balloons,this so called "proceduce" was not followed by the others and why am I being chosen out of the bunch of people to follow it? Khathu now decides to ask me if we can talk far away from the customers because they were officially staring at us during this disagreement,not only do we move away but Khathu asks a female employee to talk to me. I dont understand if his too ***ist to sort out the situation or If he just doesn't care about my customer rights,either way I make I clear to both him and the female employee that I want to lay a complaint and Khathu points me to some customer service keyboard inside the shop and points to it and says I can complain there and walks away! That was definitely one of thee worst experiences I have ever experienced in terms of customer service.