Exchange of shoes - Consumer Complaint for PEP STORES

I bought a shoe for my daughter yesterday which was small I took it to exchange dis morning as I bought it late afternoon yesterday da manager and staff gave me a very hard time in exchanging the size I have pictures of da shoes unused bt still was a issue every time I go there to shop I'm treated with no respect is the staff paying for the stuff or am I pep stores in clairwood is pathetic send da staff for training so they know abt customer service the manager has no manners what so ever and il definitely nt be shopping at pep ever again