Inadequate customer service

On the 8th February 2024 I bought plastic sandals for my baby they we joined by that thin plastic clip I saw size five, when my baby fit the shoes the other was 5 and the other was size 2, I wasn't aware as they were joined together, today I decided to return them so I can get the correct size there was no que, i spoke to a lady by the name Riri it says so on her name tag, she advised that I go look, I did to no avail, I see a guy by the name Thapelo he was packing shoes I asked him if I can get the shoes in a specific size, he told me there are about 200 shoes in there and it is not his job to check the shoes I am looking for, he gave me multiple excuses, I even told him you not even attempting to give me a solution you just giving me excuses, as I asked him if he can check for me with other pep stores he said he can't describe the shoes , I then said but there are barcodes dude, he laughed and said they had a bad experience, I must just go to any pep to look for the shoe😡 I decided to take another pair not the one's I liked, I went to the lady at the till when I went back the que was supper long I then tell her I found these she said I should join the que I am like but I was just here lady how do you expect me to join the que again she was being petty her name is Riri on the name tag I left those shoes plastic, no slip I told them to keep everything, I have never received such bad service my entire life, this is what customer service is at pep, that's how agents treat clients, I feel bad if this is the behavior I love buying at pep but I don't see my self or any of my loved ones going back there again.