SHOCKING SERVICE from CEMAIR

I bought a ticket to Margate on Cemair, through Travelstart during July 2018. Departing on 25 December 2018 at 9;00 from OR Thambo. Arriving at the counter, to my surprise, the flight was cancelled, but I never received any notification. After a big effort I got a flight from another airline, but I had to wait for 6 hours to board that flight. The other problem was that there were no rental cars available , since I now had to travel from Durban to Margate. In the end I had to pay R1 400 for an Uber to take me take me there, wish added to my extra cost. After everything that I had to go through and pay, due to problems that Cemair caused me, I am still waiting for my money to be credited after 10 weeks. I have mailed them twice explaining that I am a pensioner and that I need the money back. I can not understand that we, as the customers, have to suffer due to their problems as an airline