"At this restaurant, there were some beverages available on a buy two get one free deal. However, on Sundays, they changed the sign to offer a free drink or dessert with the purchase of one item. When I tried to take advantage of this promotion, the owner said it only applied to certain items, not the ones I wanted. This was disappointing as the advertisement had claimed it would be valid for all drinks and desserts. It seems they are now only offering discounts on select items, making it difficult for customers to take advantage of the deals."