still waiting for my refund

travevelcheck and air Mauritius still have not refunded my money an amount of R33.000 after the flight to Mauritius has been counseled by them . 4 ticket that was bought by cash in 2020 till now has not been refunded. they have been promising to pay back but nothing has happened. is this how they ran their business? this is a disgrace, a day light *******. please help I need my money back. Nkosinathi is my name.