Poor customer service, owing me money

I have ordered a pair of Trail RX style 6 on the 3rd of Jan and made payment straight into 30south Eyewear as the email respond was they either out surfing or mountain biking etc .by the 10 Jan I recieved nothing and emailed to follow-up. I got a reply back saying they were in leave and going through 200 orders and mine will be delivered early in the following week.come the following week dated the 17th still nothing ,I then requested a refund of my money as I haven't received my order of which I paid for and was never shipped out as I didn't recieve any confirmation about my package.they rep**** by sending my email stating that I will get full refund of R700 .today marks 3 weeks and still no one has been paid into my account .

Please assist me to getting my refund