Bad Service Received (Shoes Exchange Rejected)

I am just from Pep Ndofaya Mall Meadowlands being so disappointed by the service received. I went there to exchange the shoes for a smaller size, I received this shoes from my daughter for a mother's day gift. The store senior refused to exchange the shoes...her exact words were with an attitude raising her nose "mama you wore this shoes and then and you realise they don't fit you, now your returning them". When I told her that I wore the shoes to fit them at home when I received them though courier since they were bought in Benoni hence when I realised their biggest cut, I took them to their store to ask for an exchange as it's the closest to me but she refused and said I must return them where they were bought the way they are in Benoni....So I live in Fleurhof, I must either travel to Benoni to return the shoes or courier the shoes to my daughter to return them to Pep in Benoni because she refused to exchange them. Can I get Pep's complains department email address /WhatsApp so that I can send the pictures and videos of the shoes she accused me of wearing them on the streets before returning them so that you can do thought observation