Kulula counter at OR Tambo pathetic customer service

Kulula OR Tambo is absolutely pathetic!!!! My mums flight was at 8:20pm and we were stuck in traffic for 3 hours due a massive accident on the N3. We got to the airport at 8pm and the assistant at the counter refused to help us even though we were late due to a reason. He said we should go to tickets sales, we pleaded and got angry with this and insisted on seeing a manager. The manager was rude and told us the exact same thing she did not listen to anything and had a terrible attitude her name is Leeanne. Kulula has signs everywhere saying "treat our staff well" how can we do that if your staff treat us customers so terribly with terrible attitude. This is not fair on anyone especially when there are valid reasons involved, traffic accidents are unforeseen just like natural disasters and this is the treat kulula gives customers who pay. Leeanne actually had the audacity to say that she will give us the records for the flight to show how many people made it even though there was traffic making it seem like we were lying. She even said that she spoke to the control room and they informed her that we could not get onto the flight due to any circumstances, how was that possible when she didn't even know our query? FYI many people who ended up at the ticket counter were all stuck in the same traffic. I am so terribly upset with this service and I promise you this complaint is going very very far.