coffee not up to standard

on Friday the 12th March 2016 me and my wife visited the Torrador restaurant in cape gate shopping mall in brackenfell . i ordered an americano coffee . the waitress who was very friendly, brought the coffee. I noticed that the coffee was not up to standard and tasted like some instant coffee . i mentioned it to the waitress. she took the coffee away to make stronger coffee. a women who called herself the manageress came to my table in a rude manner and attacked me that that is the coffee they make. she said if i want stronger coffee the i must pay more for it. the paying more is not the issue . her attitude is what i am not happy with.. i decided not to go there again