NO REPLY ON MY REFUND

I PAID FOR A 12000BTU GREE AIRCONDITIONER TO BE INSTALLED. AFTER THEY CANCELLED MY INSTALLATION DATE 3 TIMES THEY ADVISED ME THAT THEY DO NOT HAVE THIS AIR CONDITIONER AVAILABLE AND HAD ANOTHER ONE THEY WANTED TO INSTALL. I REFUSED AND REQUESTED FOR MY MONEY TO BE PAID BACK. AFTER NUMEROUS EMAILS TO ESME AND MARLENE I JUST KEEP ON GETTING THE RESPONSE THE THE COO, ENRICO MARINUS IS NOT AVAILABLE AS HE HAS TO AUTHORISE MY REFUND. IT HAS NOW BEEN 2 AND A HALF WEEKS AND I STILL HAVE NOT RECEIVED MY MONEY.