Appalling service from FlySafair airport staff

On 22 October I checked in at Johannesburg International Airport for a a flight to Durban at 5:00 AM. I had booked a ticket with my married surname and the ID Document was showing the ****en surname. I did have a copy of my marriage certificate with me. The checkin young girl, refuse to accept my marriage certificate and sent me to the ticketing office for a name change. The FlySafair on duty, was rude, arrogant and aggressive, which is totally unacceptable for someone dealing with the public. I paid the fee, and as a result of the dispute, the flight's departure was delayed. On my return from Durban, I used the same ticket and had no issues whatsoever, so I complained to Flysafair, sent them, all the documents, including the boarding passes concerning another flight I had taken with the same airline in August, using the married surname. I was promised the refund of R 300.00 for the name change, two months later I am still fighting to have my money refunded.