KFC False promise of 2 for 1 promotion

I placed an order online for their Friday special of 2 for 1 colonel burger. I watched the whole process online whereby they advised that they are locating a driver, to driver located, meal being freshly prepared, driver collected, driver on his way, driver arriving….it never got past the post of driver arriving although on the app it showed the driver at my address. I went to the complex gate 3 times and there was no driver. I can back inside to see what the app said and to my surprise it says that the order was cancelled because the delivery was unsuccessful and that the payment has been reversed and will reflect in my account within 7-14 working days. This is totally unacceptable. I do not believe that any order was prepared and that this is simply KFC’s way of getting out of the promotion of 2 for 1. I have been a loyal online customer and have never had an issue in all the months that I have ordered previously. KFC needs to reverse the credit to my account and deliver my order and if this is not possible then they need to do a complimentary delivery of my order.