Kulula uncompromising

Hello Peter. My Name is James de Meyer My complaint is against Kulula not wanting to compromise .Tried to phone their call center numerous times and got cut off. personally to their offices in King shaka and they refused bluntly to assist me regarding my complaint. I booked return flights on line to Lanseria and back for me and my wife flying there on the 15th of March Itinerary MN0502. Ticket no's were MN-***,MN and MN-*** the return tickets was booked for the 30th of March after we returned from Mauritius no's were MN-*** and MN-*** itinerary no MN0501 This was all booked and paid for on the 14/02/2022 Kulula planes were grounded for a period before and after the 15th of March and we had to get to Pretoria to do covid tests before we depart to Mauritius had to be done on the 16th 2 days before the departure to Mauritius(the morning of the 16th in centurion we were informed it was not necessary any more as long as you have a vac certificate) Due to the plans being grounded we decided to drive up to Centurion to be there for the tests the next as we flew all as a family together. Kulula reciprocated the flight's to Lanseria for us on the 07/06/2022. but refuse to give us credit for the return flight's on the 30th of March as the planes were operating again. There issue at king Shaka was that I had Time to cancel the ticket's up to 35minutes before the flight on the 30th of march then they would have reimbursed me. I explained to them that I had to drive up because of their fault the planes being grounded and that I was out of the country only got back on the 29th of March and I drove back to the South coast on the 30/03/2022. I was under the impression that the flights to Lanseria and back would have been linked thus the reason that I did not cancel the return flight They reimbursed me for the flights to Lanseria and I again booked it through them but had to pay in an amount of R71,81.I am a pensioner and is 73 years old. II will appreciate it if you can assist me .If we don't get joy from Kulula they must return my money for the flight on the 7th of June as I will never fly with them again should they not reciprocate for the return flights of the 30/03/2022 used for a return flight on the 12th of June 2022 from Lanseria to King Shaka. Kind regards and thank you James de Meyer