Almost giving up on my replacement order

Never thought it possible for Takealot to get a bad review, but I have to vent somewhere.

I ordered two items on 2020-11-11. Two items were delivered on 2020-11-18, one of which was not what I ordered. On the same day I logged a replacement request and was promised delivered on the 20th, then the 23rd, then the 24th, then the 25th. Then all SMS notifications stopped. I followed up with Takealot and was promised the replacement is on its way, but still no SMS. I followed up again, same story. I followed up again, same story. I followed up again and got an SMS confirming delivery on 2020-11-30, immediately followed by an SMS that the delivery has been delayed. So, I followed up again, and was promised delivered before COB on 2020-12-02, again no SMS confirmation. Well, guess what did not happen by COB yesterday...

I would like to assume the problem is with the courier, as it seems the replacement item has been with them for weeks now, but it does not seem any of Takealot's agents are interested in following through and actually getting the issue resolved.

In all the years I've been dealing with Takealot, I have only been extremely impressed by their excellent service, but this time I am left utterly disappointed.