FAILES TO PAY A REFUND TO A CUSTOMER

I made an online order on the 24 Nov 2024, Order No. YST561370. On the 26 Nov 2024 I received a call from a person called Sney who works at Yellow Sub Trading informing me that one of the items I ordered is out of stock. The item that was out of stock was (V-Neck Mini Dress - WHITE / M) priced R220.00. I immediately sent them an email informing them that I would like to replace the item that is out os stock and get the refund of the change. Yellow Sub Trading sent me an email on the 27 Nov 2024 informing me that they have updated my order, the dress that was out stock was excluded and no replacement was added to my order.

I then sent an email to Yellow Sub Trading on the 10 Dec 2024 asking them for my refund of R220.00 and gave them my banking details. 'Til today I haven't heard anything from Yellow Sub Trading whereas their automatic response email says they will respond within 24 hours of receiving my inquiry (Our team is already reviewing your inquiry and will respond within the next 24 hours.)

I want my refund of R220.00 from Yellow Sub Trading as the clothing item I ordered wasn't delivered, it was out of stock.