What does this look like

How many times have you see an Advert that looks odd. Well last night i went for a meal with one of my sons as it was steak night at the local restaurant. I was happy because it was steak night but curry night would have been just as good. As i was looking through the menu it wasn't till we decided to have a desert that i noticed an add for free refills. When you read the add it says Free Refills £1.10 each, OK how can Free refills cost £1.10 each.