Treated like a *****

My sister bought items for my daughter at Woolworths in Kenilworth Centre yesterday. The sizes were small and I returned them to Vangate mall but I didn't have the slip. They told me they don't stock the items so I must return them to any other store. I am very upset and frustrated because I gave them the rewards card for them to call Kenilworth Centre and request the receipt on their side. At Vangate mall I was treated so badly as if I'm a *****. After a good while, she throws the clothes I returned back to me and tells me she's waiting on them to send the receipt so there's nothing she can do until they have sent the receipt even though they confirmed that I bought the items there. I went to shop at other shops in the meantime and when I come back she asks one of her juniors to process the refund. No apologies, the woman called Marlize is very rude and lacks customer service. I am very disappointed on how I was treated at Woolworths and i never expected this at all.