KFC order still trying to being delivered a week later!

I tried the KFC app for the first time for delivery. Delivery came within the hour BUT the order was short. I called and queried a few times before the manager of the Phoenix plaza KFC advised he will send my order shortly. 6 hours later, I call back and the Nightshift manager says they have no drivers and will send me order the next day. So I said don't bother, just refund me and he agreed. 3 days later still no refund but a call centre agent calls me and says she will send me a voucher, I agreed. 3 days after that I get an SMS for a R50 voucher. ****************, all that wasted airtime and energy to be sent a R50 voucher a week later when the burger alone costs me R60. I will definitely not be using the KFC delivery option again.