Unprofessional service from BA Comair

Bad service and respond at the customer service line!! My daughter flight to Durban BA 6211 on 27 at 12 pm moved to 14:20 - as time was not acceptable for the children's camp that request to collect the children from the airport from 12 to 14 I had to cancel the flight to Durban and book another one way ticket from Johannesburg to Durban at the same day. On the 24 of December after a transferring my call from one operator to another one finally lady (JOANNE SMITH) confirmed that the my daughter’s flight from Johannesburg to Durban was cancelled and she told me that for refunding I had to phone on Monday (28 Dec) - what I did but the phone number ***) what Joanne Smith supp**** me was wrong. On Monday 28 Dec person who respond on the *** suggested either to phone *** or send email to LORRAINE MOKGARA. I managed to get someone at the new given phone number ***) and after keeping me for a long time (more than 1 hour) on the phone she told me that some mistake was made and my daughter flight was even cancelled on the way back and she would sort out the issue and phone back me in 15 min. Unfortunately, I do not have that person name, but guessing that everything was recorded as they said while you are waiting to transfer the call. Two days passed and no one phoned me back. Today I spoke with NOITUMELO and she said that flight ticket was cancelled as my daughter was not on the flight on 27 - even I got confirmation on 24 of Dec form Joanne Smith that flight to Durban was cancelled but not returned flight on 10 of Jan from Durban ???? This service is not acceptable!!! I asked JS to supply me with reference number she said her name and surname is the reference number??? Booking Reference number for ticket is S7XN8H.