No refund after waiting 37 days

I logged a return on 2019-07-28 for a faulty Android media player that I bought from Takealot.

In an e-mail from Takealot they state the following: "It could take a few weeks for the supplier to review your claim. However, after 21 days from the date you logged your return, we'll be in touch to offer a credit/refund should you not want to wait for a repair/replacement from the supplier."

More than 21 days have passed since I logged the return (37 days to be exact) and Takealot has still not refunded my return.

I have never had any problems with Takealot in the past, but now it seems as if they don't care about customer service anymore and they don't adhere to the promises they make.