horrible service from Durban north KFC

terrible service from KFC Durban north, placed my at 1pm yesterday , paid and recieved my confirmation that it will be delivered at 2pm. At 3pm i still did not have my order, i called the call centre who called the store and then advised me that they did not have any drivers and was not sure if they will be able to deliver. i specifically told her i leave at 4.30pm. We settled on they wont be able to deliver and she will send me a voucher for the value of my order. At 5.15pm i get a call from a driver saying that he is here to deliver which by this time everyone has left the office. I called the call centre again as the store did not answer, again i explained my situation and was told i will recieve a voucher. i requested the manager of that store to call me but that never happened, i still dont have any vouchers. i called the call centre this morning again and spoke to someone else who says there is no record of my case and will now resolve it, still no voucher. the store has not not answered their phones ever since and neither has an manager called me. i am a pregnant lady that had no lunch yesterday , spent my money , had to make numerous calls and still nothing ! Why offer these services online if you cannot deliver!!!!