Disgusting Service

I booked to fly my elderly father and his carer up to Johannesburg from KZN. It was cleared with the Airline before, but when the Carer and my father arrived at the airport, Mango refused to let my father fly. I had to pay for car hire and the Carer had to drive my father who is 90, up to Johannesburg to the Frail Care Centre I had arranged for my father. They arrived at 2am in the morning - the long drive having stressed my father terribly. I was told I would be refunded what I had paid for the air tickets, and that it would take 7 to 14 days. Now, a month later, I am still waiting. I have phoned numerous times, only to have sarcastic call centre staff tell me that there is no refund request, and that their manager is in meetings and cant talk to me. Is this what you offer Mango? Its sickening!!!!!!!