Very rude service help desk ladies and unhelpful

We encountered issues with our car on our way to the airport but we were there 45 minutes before our flight and the ladies were so unhelpful, unprofessional and very rude to say the least. Now I understand I was a little late but I believe there was time to help but they kept sending us from pillar to post without a way forward until at 11:00 they said they can’t help us anymore because our flight at 11:15 was about to close doors. I asked to pay a fine and book for the next day but I was simply told we can’t help you you’ve forfeited your tickets and we talking R20k. I don’t understand why airlink would put such unprofessional and unfriendly, unhelpful people in their frontline of customer service.