No delivery and no refund as promised

I ordered three products on 1 December. Due to technical issues and not allowing me to pay via EFT (although I always pay via this method), the order was placed twice and COD selected. After phoning and speaking to a lady I was informed that the duplicate order could not be cancelled but that when it is delivered I can just reject it. I then asked to pay for the right order via EFT which i did, and submitted proof of payment. Takealot confirmed that "finance" had allocated the money to the order. Unfortunately it was allocated to the duplicate order and not the original (even though the reference was for the original) but I was informed that it did not matter as the orders were the same. So i was told to just reject the original order and accept the duplicate. Both deliveries were scheduled for 6 December. I then realised that the amount I paid was for the duplicate order due to the products being daily deals, so were limited to one only in the original order. The duplicate order was for R100 more than my original order. I then contacted the same lady and she sorted it out and told me the refund was being processed and would be credited to my account. On the 6th of December, the one order was delivered, the one that i was told had been changed to an EFT payment, yet Takealot had not informed the delivery driver who still had it as COD. So he could not deliver it. I emailed the lady back telling her, and did not receive a response. The next day the driver came again with that order, and again, still noted as COD, so he could not give it to me. I phoned Takealot again and complained, saying that it had been paid for. In the meantime, the original order is nowhere to be seen, despite the fact that delivery was scheduled for the same day. I received a response from Takealot saying that I mus forward them proof of payment so that "finance" can allocate it. I informed them that this was already done on 1 December and that i received confirmation from Takealot that the payment had been allocated. I then received a second email from someone else at Takealot asking me the same thing. And again I gave them the same information. Today, i get an email saying that my order is being sent back to the Warehouse because of non-payment. So i phone again and am told that yes, it is being sent back, but that the original order will be sent. But according to them the payment was allocated to the duplicate order (their error) so how can that one be sent back and the original which they had as COD is now coming! But where has this order been the past 3 days???? Delivery was for 6 December, it is now the 8th. No-one responds to my emails and every time i call which is about 6 times now, i get the SAME story about them looking into it and giving me feedback. But i get NOTHING. No order, no response, nothing. And the order was paid for. AND i now see that I have not even received my R100 refund!! Nor a credit to my account!

SO please tell me what on earth i need to do!!!???! I paid for my order on 1 December yet Takealot REFUSES to have it delivered to me.

And, as a side note, another order which was scheduled to be delivered on the 6th is now apparently only coming on the 11th! No explanation, nothing. I do not even get informed.

Honestly Takealot, as a customer who has ordered from you regularly for years, this is shocking and unacceptable service. But hey, I bet you will not even respond to this!! Probably because you could not care less.