Putrid service from KFC the Ridge

I placed an online order for 2 burgers and 1 large chips on Monday the 25th and also paid for it from KFC The Ridge. I Receive confirmation of my order and that it will be delivered by 4.16pm. At about 4.05pm I received an sms saying that my order has been successfully delivered. But I have not received anything. I went to the store personally and the shift Supervisor told me that they will refund me my money. No one could explain to me what exactly happened to my order or who the driver delivered it to. I then received another sms saying my money has been refunded and will only reflect in my account after 7 to 14 business days I not happy with KFC the Ridge at all in fact KFC as a whole because up untill today no one from KFC contacted me to explain or to apologize