Cemair customer services is poor, poses health risk.

On Monday 20 November 2023 at approximately 07h55 I was flying from Bloemfontein to Johannesburg on flight 5Z101-Cemair. Unfortunately I had a terrible experience when the flight struggled to take off but the carbin crew tried to calm us down atleast. The aircraft went back to the parking bay, we were told that I had technical problems and technicians will attend to it and we should disembark. After an hour or so we were asked to board the same flight again and I was not comfortable at all and I was frustrated because I was already late for my appointment. On Friday 24 November 2023 at approximately 15h30 I was flying back to Bloemfontein from Johannesburg on flight 5Z108-Cemair. The flight was hot inside because it was parked in the hot summer sun , but to my surprise the aircraft aircon were not working. Unfortunately for me I suffer from sinuses and shortbreath and when the flight to off I was almost fainting because I needed air but couldn't get it.The was only one flight attend who tried to assist and even changed my seat trying to get some air for me towards the back of the aircraft. I almost passed out. I send cemair an email about this experience and they promised to investigate. Until today I heard nothing from them. I actually sent follow up mails but no action taken.