The food was great but the service needs work. The...

The food was great but the service needs work. There was a mistake with my order which meant I was served food that had been sat on somebody else s table. The waiter took it from that table, walked around the restaurant with it and then brought it back to us. As if we couldn t see what he was doing! The mistake is understandable, but when the wait staff try and pull the wool over your eyes (and can t even do that properly) the addition of a 13.5% service charge doesn t go down well.