Refused entry for 6 minutes late check in

Goodmorning

On 30th july 2019 I was on a 06:15(depature) flight to lanseria, get to check in at 05:36 with my colleague as my witness the lady Abigail Naidoo said I was late for check in by a whole 6 minutes so I cannot board the plane be mindful that I had no luggage to check in and just needed to get onto the flight then she said to me (perhaps to get rid of me) that I can go to the kulula counter and they will help me change my flight little did I know she was sending me to Nosimo mthembu (at the counter) to be ******ed of R678.50 to move my flight to the next one, I asked them to help me they said there's nothing they could do ,I think this is just a money making skeem to rob paying customers out of their money because once before I was late and it was 10 minutes before take off and I boarded the plane with luggage that I checked in on another airline, also a month ago kulula made us wait over an hour for a flight, so long story short ,I had no money but because of work commitments had to pay with my credit card because the "lovely" Nosimo said that there are no supervisors and she is the supervisor and if I didn't book before 6:15 they will cancel my return flight, what kind of **** is that, what kind of customer service is this and why is it acceptable for kulula to ****** money from people, STOP TAKING LIBERTIES KULULA, I hope you never give this experience to any other customer