Horrible experience on Mango airlines

We had an absolutely terrible experience with Mango airlines when we traveled from Johannesburg to Durban. Firstly, it took almost 25 minutes to board the plane. No explanation was provided by the captain for the delays save and except for that we were delayed, and that it would take 10 minutes for them to load the remainder of the bags on to the plane. Unsurprisingly we sat on the tarmac for approximately 30 minutes more. We left an hour after we were meant to. To make matters worse. While we waited on the tarmac, the aeroplanes aircons didn't work. It was an extremely terrible experience and no explanation in respect of the delay or lack of air conditioning was provided by any of the flight crew. Extremely disappointing.