Useless Service

So in 2019 my friend and I bought tickets from CPT to JHB for a Friday last flight out because we had an international flight the next morning from JHB to Hong Kong bear in mind we paid for our accommodation in JHB already. We arrived at the airport waiting to check in and waiting to check in and waiting to check in and all that we were doing was actually checking in! Kulula/British Airways then cancelled all flights because they said there was too much fog! But yet other airlines were flying?? How?? Anyway it was going to the am already and we still didn't get any answers from anyone... eventually they decided they were going to get us booked in to a hotel because we were at the airport... well morning came time to check out no word from the airport we decided to take an uber back to airport to see what we can do so that we could get on any flight to JHB to make our international flight unfortunately with the delayed service of Kulula we couldn't make any other flight!! So we had someone come fetch us we called Cathay Pacific there was nothing they could do because the flight was taking off as per schedule so we lost that money and our trip to Hong Kong! We sat at the airport trying to figure out what we going to do, eventually we just went home! When we got home we were extremely tired! We went back to our agent to see what they could do, we had to pay once again so that we could get onto another flight just to make our trip to Bali, we had to book with Emrites! We sent Kulula an email we got a response with a voucher of R1000??? Our flights costed us more than that, anyway then when we wanted to book flights Covid took place, then the voucher expired I made contact again then they gave me a balance in my travel bank and every-time when I wanted to book something came up and I just never got to making the booking so when I went on the Kulula the other day I saw the travel bank is now empty? I emailed them probably thrice but up to now no one had the decency to ever contact me back?? So what now? Do I just accept the fact that I lost my money for my flights on both Kulula and Cathy Pacific??