Waiting for the Call - 2 days later

On Friday the 10th May I did an upgrade on my line via the Vodacom website. I got a confirmation SMS and email to tell me that it had gone through successfully. At around lunch time I called the upgrades department to find out what the next step was, I was told I need to wait for a call from the sales department to confirm everything. According to the website, if one does the upgrade before 12pm that day, the deliver of the device should happen the next working day. It is not Monday the 13th May, 2 days working days have past and still no call from the sales department. I called the upgrades department again today and was told I had to wait for the call. Now it usually would not be an issue, except when I look at my proposed bill for May, I am already being billed for the new package I upgraded to. But this is not where it ends, I am now unable to buy any data or voice bundles on my current line. I was told it was due to the upgrade that was pending. I have been limited now to what I can do on my line. I want someone to please give me answers or at least give me a call to confirm the upgrade so that it can happen! I cannot keep being given this run-around, its beyond a joke really and extremely bad service.