FNB Card - Kulula Fund

I booked a flight using my FNB card with Comair, and of course it would be when they grounded all the planes during the March long weekend. Tried getting my money back via useless Kulula, and then they went silent. Then I was advised to ask FNB, because I used my FNB card, I can be refunded. After multiple emails and secure chat (useless app) I got told to send all my documentation to Cards & Disputes etc. I did that on the spot, 3 to 5 days for an answer, only to be ghosted with zero replies, after almost two weeks, then spending an hour on the secure chat to get asked for the exact same documents, and then the app closes and chucks me out. Please FNB, I am R5k out of pocket because of useless other people, please help and don't become apart of my problem, how can we help you is your motto isn't it?