Refund still not paid to date!

My dad booked return flights from Pietermaritzburg to Johannesburg for Dec 24th (Christmas Eve)2015. About 2 weeks before they were meant to fly, he received an email from Flygoair's IT Department saying that the all flights for that route had been suspended and that he would receive a full refund for the flights booked.<br> <br> They had booked and paid for a holiday in JHB so had to book tickets with another airline in the interim just to get to their destination. As a pensioner, booking another set of flight tickets was a further unforeseen cost that he had to fork out of his own pocket. <br> <br> In the email it was requested that passengers supply their banking details for a full refund (R2740). He rep**** promptly with all of the relevant details including his proof of payment. <br> <br> We have both tried calling and emailing the airline numerous times since then and have not received any further communication from Flyoair. <br> <br> The telephone numbers supp**** by the airline just gives an engaged tone. <br> <br> It has now been +2 months since the booking was made and still no communication from the airline.