Poor service

My name is Phillip. I booked flight with travelstart and paid for flight a month before departing for 26 March 2021 Booking *** Due to unforseen circumstances I first tried to move flight without any luck about week before flight. I received an account for the amount of R900.00 to move the flight. I then decided to cancel flight due to fact that it was not worthy to pay and had to move the flight again if necessary. I then decided to cancel flight in order to get a refund on my payment. I received feedback that flight can be cancelled on Travelstart whatsapp app. I cancelled flight on Whatsapp app but received feedback that there are no agents available. I then send email to cancel flight but did not receive any feedback. Furthermore I then tried to call Travelstart, the fone rang but call was cut off every single time. If this is service I get for booking flight with Travelstart agency I will no longer make use of their Service as I'm highly disappointed.I expected a professional service as I tought that booking flight with Travelstart agency would be much better service provided to me. Up to this point I don't know if my flight is moved or cancelled and flight departed today at 15:00-26 March 2021 booked with Cemair.