We had a terrible experience with Mercado 28. We placed our order from the barra asking for food from 2 different restaurants (the whole point of this place). I ordered a burger, my girlfriend ordered ceviche-arroz duo. While preparing my food the person working at the burger restaurant was busy talking to his friend and was not paying attention. When what looked like my order was ready it sat on the counter for 10 minutes before being picked up, when a waitress picked it up from the counter she took it to a different table. The burger then was passed from waiter to waiter for another 5 minutes before finally arriving at the table. Once it arrived I realized that it was not what I had ordered and told one of the waiters. Since after my complaint there was almost no reaction and, in the meantime, my girlfriends order had arrived, I stood up and offered to eat the wrong order anyways because it would have been wasteful to through it away and make a new one. In all this mess the waitress Alessandra that took the order and placed it incorrectly never came up to our table to apologize or offered any explanation, we talked to a girl in a green t-shirt. For our trouble we were gifted two shots of alcohol and guaranteed that we would have payed for what we ordered. At the moment of paying the server Alessandra did not show us the detail of our order but only the total to pay, only upon asking we realized that we were charged for the wrong burger (which cost more than the one I had ordered and never came). The server Alessandra proved once again totally unprofessional by telling us that we were charged for what we had eaten and that my burger was given to a different table. We managed after arguing to pay the correct amount. While we were leaving we said goodbye and everyone but the waitress Alessandra (responsible for most of this mess) didn’t even turn around to say goodbye in a completely unprofessional manner. Our experience was badly influenced by the lackluster service to which I would have given a lower score if possible. Would not recommend.