15days to get a Refund

I booked a car through Yell For Yellow, I was then sent a consultant from Tourvest Travel who was pleasant and assisted me very well, but when I got to Cape Town, the car hire they organized couldnt give me a car. I called and told them, my refund was due in 7days since I now had to use a shuttle because I had already paid for a car I couldnt get. <br> <br> today is 15days later, I am still waiting for my refund... <br> <br> I am appalled at the service, I am the one calling or emailing them all the time and they keep saying tomorrow tomorrow, When exactly should I expect my money, how hard is it to give someone their money back?