FlySafair poor service.

I'm highly disappointed with FlySafair. I have booked a flight on 23 /08/21 for 26/08/21. With an email confirming my booking, I did the online banking on my side and showed approved. I got an email with detailing that my flight is confirmed. On my way to the airport, I checked my details to confirm my flight. With a shock at the bottom of the page in small letters it said balance outstanding. No phone call??? no vivid explanation???? My flight was cancelled. I phoned waiting 30min on my way still to airport for help the call was not very helpful at all, to help. I had to book another flight for the afternoon, I requested that they put me on the morning flight seeing that they have open seat available regarding the "COVID" situation. NO HELP AT ALL WAS OFFERD TO GET ME IN JUST SORRY WE CAN’T HELP YOU. THANKS, SAFAIR FOR A HORRIBLE EXPERIENCE!!! I HAVE MISSED BUSSINESS MEETINGS AND IMPORTANT WORK. PLEASE WORK ON YOUR ADMIN TO INFORM YOUR CLIENTS OF WHAT IS GOING ON WITH THERE BOOKINGS !!!!!