Owner refuses to return or exchange top

I bought a top as a present from Rainbow Accessories in Parktown North. It wasn't suitable so I tried to return it after 10 days. They have a 7 day return policy but I explained I had been working long hours and wasn't able to get to the store sooner to exchange it. The manager, Lily, refuses to speak to me but told her staff to tell me I cannot return or even exchange the top - which has never even been tried on let alone worn According to the Consumer Protection Act, I have 10 days to return something unsuitable but Lily told her staff to tell me not to bother going to the store because she won't give me a refund or exchange the top. It has clearly never been worn - still has label on it and in the original packet. Of course, Lily is never at the store for me to go confront her personally. She told her staff to tell me that I am welcome to sue her or report it on social media, in fact she told her staff to tell me to go right ahead. <br> What are my rights as a consumer? How do I get my money back for a product I don't want and cannot use?<br> Their contact number is ***