Makro withholding my refund *******ly

I wish to lodge a formal complaint as Makro had failed to refund me the money I paid over to them on or about 10 November 2017. I bought a MacBook on line and Makro failed to deliver it within 21 days. I have subsequently app**** for a refund on 15 December 2017 and have followed on the refund since December up and including 4 January 2017. I spoke to Nthabeleng , Jabulo and Lavisa. They can’t give me a reason why Makro is unable to refund me. The amount is over R33 000. Please refund me this money today with interest on 22.5 % as you have unreasonably delayed payment to date and you have also failed to deliver the goods as promised.

Please also advise the CEO of Makro and Chairman of the board so that I can advise them also of the atrocious service I am receiving from the staff and management so that they can take the necessary disciplinary measures against the non performers.