Request for a Refund

I order food from a restaurant yesterday at 4pm from trade route mall which i received confirmation order was successful i paid via EFT notification received delivery will be received at 4:50pm , because my allocation doesn't pick up my area where i stay it pick up the closes area to me which was Shari street Lenasia which i did in the delivery instructions box provide the correct address at around 17:07 pm i decided to call the number to find out how far and i spoke to a lady telling that the driver collected the food @ 4:30pm already and should have been there already as she was tracking the driver she told me his on the R554 so i decided let me wait a few minutes , while waiting I receive confirmation notice unsuccessful delivery, I call the call the number once again only to be told we dont deliver in your area which is Lehae and my next question was why did it accept my order and how will i get my money back at this point I'm furious and demand to speak to the manager and was told they will send the matter to management, later that evening at 18:49 pm i spoke to Bonnie Gaba and she's telling me the address was wrong and i explain to her it doesn't pick up my area it picks the closes one to me yet she tells me we wont refund you the fault was mine and they dont deliver in Lehae, The funny part is just today there was a MR Delivery motorbike at my neighbour house and as i was about to approach him he run like a child pushing is motorbike and hop on it and screen we dont deliver in this area i spoke to my neighbour and she confirm it was MR Delivery the brought there order , until now no feedback from them about my refund nothing instead they send a R50 voucher what must i do with this voucher if they dont deliver in my area all i want is my REFUND