Rude service agents, who pass the bug and still haven't received my refund

Vodacom sales agents called me and offered the 10gb data + modem and because I had been with them for a number of years I decided to take the deal. They asked for an alternative contact number and provided them my husband's. Few days later,my sister in Kzn gets a rude driver from Ram couriers asking her where she is and why she hasn't been answering when she is expecting delivery and they say they are at my home address. I had clearly stated I work therefore it should be delivered at my work address...

The driver eventually managed to deliver it at my work address and accused me of giving them my sisters number ( Cellc) and where I needed my delivery. I then called Vodacom to activate the new sim and after speaking to them asking them to correct their error and provided them my vodacom number. All the notifications of my recent activation came through my sisters Cell C number not even the alternative number I had provided them. I called again asking them to correct this error and nobody took ownership to this. I ended up asking to cancel the new contract where they quickly without trying to ask why I wish to cancel asked where I wanted the collection to happen. I was refused a manager. This was on the 5th of October. The collection only happened on the 28th of October. I have since spoken to a manager by the name of Tebogo who promised call backs and many other service agents but nobody has advised why I still do not have my refund. Today I received the November invoice!! I have cancelled and was guaranteed that I'd get my refund last week already. Why am I getting an invoice? I have recordings of the agents who muted me for 15 minutes and longer without stating why they were placing me on mute or hold. When I requested not to be placed on mute, she said I must hold for a manager and I was on mute again for over 5 minute. Soon after I was disconnected. They surprisingly called back and the background noise was **********.