Cyber Monday Flop and run-around

I stayed up on Sunday to get one of the Cyber Monday deals, and was quick enough to get the deal. Filled in my details, including bank details, ID, location for delivery, etc and had to give consents and permissions. Vodacom sent me a confirmation on screen and via email that I had gotten the deal and would hear from them shortly, and I would get an SMS.

Next morning, still no sms. I call customer services, and wait 15minutes. they can't help me so I get redirected. Wait 20 minutes. They can't help either, so I get redirected. Eventually I get to someone who says I need to call a new number, and they can't forward me so I have to call again.

I call the new number, wait 45 minutes on the line, only to be told that despite the confirmation from Vodacom, I don't appear on the system, and won't get the deal. I get told to send an email and they will see what happens, sent the email, no reply, no confirmation or acknowledgement of receipt, nothing.

Now I'd like to know how it's possible that I got confirmation on a deal which doesn't appear on the system. And who must I contact to resolve this?