terrible food and customer service

customer service was terrible..we told them that the burgers we ordered from KO burgers tasted funny, they made a second one and stil tasted like the cheese was sour..the waiters felt the need to give us looks and speak in their language...over all the service was bad and the quality of the food was terrible..the waiters really need to work and their customer service and stop giving customers attitude, they are chasing away good business (PS nuri's in n1 city really needs staff from different race groups aswell)