Missing parcel

Good day, I have sent a package to Chatsworth Post office 9 March 2020, on the 18th March it arrived.

The person it was delivered to did try and get the parcel but they have told him it is not there.

I have tried calling around and each time I was told it is still in Chatsworth. Eventually I get hold of someone in Chatsworth and they said they will call me back.

When they called back they said sorry they sent it to the Cape Town returns office. I asked for their telephone number and they said they donot have it.

I have tried several times to speak to a manager but their phone just rings.

Note: the tracking proof below still says it is in Chatsworth. 29.09.2020.

Also do they not contact the person before sending it away, do they only send 1 notification? What is the protocols for Chatsworth?