Debonairs robery

I feel ****med or ****** by Debonairs Dundee, I ordered Pizza to the value of R389 and opted to pay with card on delivery, when the driver came to deliver he gave me a slip with the different amount of R418 with 18 rand delivery fee which I was told it’s a free delivery while I was processing my order, the driver has to explain something that I don’t know of. Can Debonairs explain as from when they started charging for delivery fee which is hidden during ordering process, I feel ****** nje, I am staying 4km away from them and it’s not the first wi was ordering ayi never paid for delivery