Refund still not received after 2 weeks

On 2 Feb 2025 I returned a rental car which was arranged through my insurance. On 4 Feb 2025 I contacted First Car Rental to let them know that I've had to cancel the card I originally used to pay the R2000 deposit and went through a whole process to change my card details with them to get my deposit back - they state that your deposit will be paid back within 72 hours - They owe me just over R1900 of the deposit. On 11 Feb 2025 I contacted them again and was told the refund was made to the wrong card on the 11th, after I contacted them again. I was told that I'd have to wait another 72 hours because it shouldn't matter that they made the deposit to the wrong card.

On 14 Feb 2025 I contacted them again and now I'm being ignored. They still owe me my money.