Terrible refund process--still waiting!

I ordered and paid for a gift card on the Sorbet website and I was double charged for it on my credit card. I've been requesting a refund since the 28th of May, emailing: Karabo Dennet, Ammaarah Mohamed and Nthabiseng Nkosi. They keep on giving me excuses and blaming the payment gateway (PayU) but this is irrelevant to me as when purchasing the gift card, that was me entering into a business relationship with Sorbet and not PayU.

They still owe me R1500 and it's long after their 14-day period for funds to reflect in my account. This is very ********** behavior. Would NOT recommend!