False Advertising and Shocking Service

I ordered a kitchen item from Takealot. When the item came, it was not the size advertised, so I called and spoke to someone who arranged for an exchange to take place. It was collected and I received an email saying that they would credit me for the item. I checked and the item was available for delivery in 5-7 days. I emailed takealot back and asked for the item to be delivered later because I don't want to have to pay for shipping again, especially because Takealot is at fault and I requested an exchange. I got a reply saying that the query was 'successfully concluded'. I sent an email saying as the customer, I disagree and requesting that a representative from customer service contact me. I was emailed the EXACT same reply about my query bring 'successfully concluded' and no reference was made to my request. I checked my account and no credit had been added, so I called the 'help'line and said I would like this rectified. The lady who helped me said that the original person who emailed me was wrong and that 5 days ago they processed a refund. Again I requested a call from customer service - I will be surprised if I receive it.