Refund not processed past the mentioned date.

I have ordered online on the 15th of October 2023. My order was not delivered and went past the delivery date. After struggling to get hold of them for weeks , they emailed me to state that they no longer have the TV I purchased. A month later they gave me an option for a refund and asked for banking details which I was told would reflect within 7 working days. Its close to two weeks now and still no refund!