Airlink Transit Nightmare

I had the worst experience ever today. And as far as I get a choice in the matter, I will never fly Airlink again. I was in Kasane, Botswana and had to travel urgently to Lusaka, Zambia. I got my company to book me a ticket, Kasane to Johannesburg and connecting to Lusaka. Flight 4Z307 landed and came to a stop on the tarmac at O.R. Tambo International at 16:15. By then the Lusaka flight 4Z165 was already busy boarding. After fighting my way through passport control and security check, I eventually got to the gate and it was closed. Everyone was gone. I missed the flight. I went over to an Airlink staff member who was busy at gate 29 and explained the situation. And she told me that I was the one that was late. Telling me that I did not adhere to the legal limits that they have, I.E. that I must allow for an hour for transit procedures through the Airport. I ask myself the question, then if you know that is going to be the case, why then sell me the ticket. And then another Supervisor figure from Airlink came and said that there are no more flights available today (11/05/26) and that I would need to buy another ticket for tomorrow. This is not customer service, this is customer frustrations. Then to crown it, I had to wait for my off-loaded bag. It was not satisfactory. I guess I cannot complain about service as there ain't any. I eventually got my Company to book another ticket through SAA.