Online Purchase, Money not allocated and product not processed despite them receiving my proof of payment!

On the 27/11/2017, I made a purchase on a promotional item which is the 1'5 TB Seagate hard drive. This was 2 days ago and I phoned in to find out why it is not reflecting on the site. I purchased online because it's supposed to be convenient but this is far from it. Spending 3 days thinking about what's happening with my money since it left my account and why it hasn't been linked to the product is mind wrecking.

I also sent an email to their online support, and a day later they said it will be escalated and someone will be in contact with me and of course there has been no such contact, apart from me phoning in yesterday and today to find out what is happening with my purchase and again I was told they cannot allocate the payment and my item has not been secured for me. And on the site the item is still in the trolley icon and there is nothing under the “My purchase history” tab. So then what happened to my money? When will this be resolved when the promotion is over?

When I called them yesterday a lady said the payment takes 48 hours to reflect its now the 3rd day, she said that I must send her my proof of payment, which I did. Why haven't I received and order number and tracking and trace number for my product. She said by yesterday afternoon my order should be processed but when I called again today another lady said they haven't received my payment but that she can see that I sent in a proof of payment and told me she'd check with their accounts department. So why wasn't that resolved with accounts department when I sent the proof of payment yesterday, what more do they need?

It was done with their (EFT Pay U) option which all you have to do is select the Bank you use and then enter your Bank Account Number and Password then the payment goes through so I know the money went to them cause it deducted of my account so they can’t tell me I haven’t made any payment! If this is the case they should just have the manual EFT option. 48 hours definitely is up. How many emails must I send and calls must I make to get my Hard Drive or at least a refund. I will not be purchasing online from this Retail company again. I have had no problem with online shopping in the past this is really a frustrating turn of events.