Incorrectly billed and no refund processed

On the 24th of November, I went to the Ferndale store to purchase school uniform for my daughter, the cashier accidentally charged me R100 for socks that I didnt purchased. When I arrived home to review the emailed invoice, I then realised that I was charged a R100, I sent an email and Annie confirmed that it was incorrectly charged and they will process a refund, however to this day, I am yet to get my money back.