Bad Purchase

I have bought a pair of Shoes end of April 2019 and it was Urban Art Brand, spent R600 on this pair of shoes, after using it for a few days in a month, the inner was worn out and uncomfortable. When I went to the store to return the item which was yesterday, they don't give refunds, and they will contact me when they get a response from their head office branch, this is the 1st time I have experienced this, so I was a little shocked but I said ok. They phoned me later on that day to say my claim was approved and I can only do a swap and not a refund. They didn't have a pair of shoes that I wanted, and they could only offer me a voucher or a swap for another brand, I needed something more on the casual side for my work but there was only Urban art or Bronx that's was going to suit my needs, I ended up taking a pair of Hi-Tech shoes which I had to spend another R700, this is an outrage and I will never purchase from this store again.