How do i get them to pay back the money?

To whom this may concern

Im writing this review because of the utter disappointment I had with Kulula.com

I booked and paid for a flight for Friday 31st August to Cape Town from O R international. I received confirmation from kukula.com that the flight was booked and paid, the money came off my bank account. However when i went to the counter to get my ticket they said the reference number that i gave them was incorrect and no such ticket existed. I showed them the email and the were concerned that the ref that I was given had too many digits. I missed the flight as they would not let me fly. Even tough I was showing them the email confirmation sent to me from the kulula.com website. I phoned Kulula on the Monday to try access the situation and the lady on the phone confirmed that the digits on the ref code was too long. But she said i did pay for the flight. She then kindly asked that I send the email that I received through to her personal company email address and she would sort to the issue. I heard nothing for two days. In this time i had to book and pay for another flight to Cape Town. I have now sent a letter much like this one through to Kulula complaints and there is still no response. This company now has R7000 of my money, (as i hired a car as well) I'm a little concerned that after nearly a week of trying to communicate with company that there is still no response nor resolution to this matter. Hellopeter what do i do next? regards Bruce Austin