Terrible Customer Service

When I was at the boarding gate the lady requested my boarding pass and my Smart Card, I issued them to her, there was an issue with the luggage as I was already late with the drop off, she was busy talking to the securities saying I won’t be able to take my bags with me and the other lady was busy shouting at me saying my flight is leaving now I must go or they will close me out. So I left everything took my hand bag when I was approaching the plane the security was sent to come and give me my boarding pass as it was required when boarding the plane. Only when I had left I realised that my smart card was not handed back to me. This was the last flight from East London to Johannesburg. If you can check the footage you will see that the card was not handed back to me. I have been calling the airport sending emails but they do not bother to respond. I would not be surprised if they threw my ID in the bin. The ladies are so rude they don't have courtesy for any of their passengers. I very disappointed with their treatment. I ended up missing my flight back to East London due to not having an ID. I have sent several emails, whatsapp, Telegram called. No response I'm still waiting as they said they are checking with the East London Airport. It's been 5 weeks and 3 days no response.