Utterly poor Service

Me and my friends visit Yamazaki quite frequently and always enjoy the sushi and welcoming attitude of the waiters and management. But, however, on the 3de of October 2015 we received the worst service ever. The waiter wasn't friendly, he didn't even ask us if we we're having the buffet or something else. He didn't ask us if we wanted something else to drink or eat, we had to call him from the other side of the restaurant where he and the rest of the waiters were watching tv. They didn't care about their tables and we could have easily just walked away without paying the bill and he would not have noticed that we were gone. I love Yamazaki and will continue going there for meals regardless of this one useless waiter. It's still a nice sushi place but the staff needs to be trained better and must be checked up on.