Mango, an airline who doesn't care about customers

I was booked on a Mango flight that was supposed to get me to Durban from JHB at 16:30, which would have been in time for me to catch my connecting flight to Dubai scheduled to leave at 18:40. I arrived at the airport in time to check-in at 12:56, before checking in, i asked the staff if I could be transfered to an earlier flight, because i was concerned since most of their flights were delayed. The staff refused to transfer me even though there were flights leaving earlier, they assured me that my flight would be on schedule and I will not miss my flight to Dubai, where I would catch a flight to Chicago, attending a conference where I was supposed to present on Saturday. the staff continually **** to me, and ultimately I missed my flight. Mango airlines offered no assistance after I missed my flight, due to their delayed flights. I was stuck at the Durban airport, with no money (I am a student), a missed flight and nothing helpful from Mango...at night. Is this how they treat their customers? because they have their money they don't care what happens to them as a result of them not keeping their word? Mango airlines really <br> suck!!