Cancelled Christmas dinner without refund

What a disappointing experience!!! We booked our Christmas lunch at this venue some time ago, and paid more than R10 000 for 7 people. The establishment cancelled the lunch three days before Christmas due to " unforeseen circumstances" and promised a refund. Three days later and I'm still waiting, after my repeated request (phone calls and email). Very unprofessional and I'm now wondering how many people have fallen victim to this?