"a discretionary optional service charge of 10% will be added to your bill" Im with Mr Pink here.... this ain't America bud... it's already overpriced, pay your staff better.
It’s a chain of 30+ restaurants that started out in the famous bonfire town of Lewes, East Sussex. It’s quite popular in London and various other cities. More info: http://www.sussexlife.co.uk/food-drink/the-story-of-bill-s-1-1646294
Have you actually ate there? Is the food nice? Menu looks half decent
Great deal if I knew what Bill's restaurant was. Is it a sister company to Sid's Caff?