Don't shop online!

I ordered goods to the value of R554.96 online. After 12 days and still not receiving my goods I requested a refund. (Website claims 5-7 days for delivery). I recieved an emailed voucher to the value of R454.96. I emailed and said I do not want a voucher, I want my money back immediately. And I want the full amount, not some random amount. Emmilene Chetty emailed me and asked for my banking details. She confirmed that I would have my refund in my account by Wednesday. I then recieved an email stating that the money would be cleared in my account yesterday (Friday). Today is Saturday. No refund. I emailed Emmilene yesterday morning, no response. I again emailed her yesterday afternoon to which I recieved an out of office response. Clearly she does not want to assist me. The level of customer service I have received is disgusting!!