Pathetic client service refuse to give me my money back

So I purchased a shoe from identity at the workshop in Durban using a Telkom gift voucher that I received from my company, then I decided the shoe doesn't go with my Chrismax outfit I returned the shoe at Gateway mall cause that was the only identity store that was opened at that time as it was the 24th of December 2017, I arrived at the store and they were about to close they let me in cause I just needed to get something different, so I got home and to find out that the cut of the shoe was too small, I kept it and then few days later I went to return it at mall nearby me Chatsworth centre, as I went to that Identity to return my goods the cashier said to me they cannot assist me with the refund because I used my gift card they can't load out funds on the card cause identity at Gateway mall didn't follow the right procedure and she cannot give me cash either... only a credit note which I refused cause it was a cash card. She then said that she will contact gateway and let me speak to the manager whilst I was at the store, so I spoke to the manager of gateway store over the phone trying to tell me what went wrong, he then said I need to come back to gateway mall cause that's the only identity store can help me. I was trying to tell him that Chatsworth to gateway is a distant but he refused to negotiate anything , he wasted not only my time but also my money. Pathetic client service what am I supposed to do with a credit note when I used a cash card, are yourl willing to give me fuel money to rectify YOUR mistake. I will definitely let my circle know about this I'm not shopping at the store again Damn rogues