Pull and Bear Did Not Refund My Gift Card for 23 Days After Boot Return

I bought boots from Pull and Bear online on January 19th. The boots were too big, and I returned them on February 9th because they were not my size. I paid for the boots with a Gift Card. Although 23 days have passed since my return approval, the refund has not been reflected in my Gift Card balance. I contacted customer service, but there was no response. They keep saying that a Pull and Bear return email should be sent to my email, but I have not received anything. I am starting to feel like my concerns are being completely ignored. This delay has caused unnecessary stress, and I am frustrated by the lack of support. I kindly ask you to resolve this nonsense urgently.