Gift Card fail - no refund!

On 23 December 2024 I "purchased" a R500 gift card at Queenspark Paarl Mall. The payment went off my bank but the gift card showed R0. The lady said she'll take it up with IT, so I had to leave the store with no gift card nor my money. Later that day I phoned the store, the lady said according to IT the problem was on their side and they have refunded me. It's now 3 January 2025 I still haven't received the refund. I've tried phoning the store, no answer and sent emails to Queenspark and no feedback.