Order delivered to random incorrect address, never received, and no refund?!

My order was never delivered to my address. It was immediately reported to Spree.co.za when the delivery notice was received (via the call centre as well as via email), May 25th. Days later when I phoned again and again, it was said to me that the courier delivered it to a domestic worker named "Thembi". I kept on explaining that I do not know such a person, it was not to my house or my neighbours and I even offered to send my security footage of the day to proof this. I have up until last week made 7 calls to the call centre. Asked for a refund 3 times, but every time we start all over again with an explanation to the call centre that I do not know the mentioned domestic and that I would like a refund seeing as the parcel has now been with someone else for weeks. The agents keep telling me they will need to "investigate" and get approval from a manager for the refund but then nothing happens? And with the next call we start all over again... Finally promises were made that I would received email notification of the refund, but still nothing? I have been told during every call that I will be contacted via email or that someone will phone me. It has not happened once. So as it stands I have not received my order, nor have I received a refund for the money taken from my account. I do not want to hear another "apology", I just want my money back, or at this stage I'll even accept redelivery of the order but I am desperate for this to be resolved.