Refund got lost in the post

I recently ordered a book online on their website. It took 2 days for them to actually reply to the fact that I just spent money on their website. After getting a reply, I was told that they don't have any stock available and it will only be made available in 3 weeks time. So on the first hand, why would you sell something on your website and not have ANY stock in lets be fair, the entire South Africa. I could've walked from Cape Town to Johannesburg in three weeks. As it was a book I needed for my studies I couldn't wait 3 to 4 weeks for the book to arrive. I asked for a refund via email, and one of your kind consultants took me threw the entire process. She then told me on the 31st of January, that it will take 2-7 working days, which I understand... Well its the 12th of February now, and I haven't gotten anything back... not my money, not a phone call, not even an email. I have sent emails back to the consultant that helped me, but it looks like Makro has a lot of people asking for a refunds, because she has been to busy to reply back to me.