Sushi Break

I decided to stop in for a quick snack only...2 veggie plates at a cost of $7.00. It costs more than sushi train but that's okay. I was not informed that I would need to pay an additional 0.50 cents if I didn't buy $10 worth of food and drink. I told the lady that I only saw the sign posted at the cash register upon leaving, and I hadn't been informed of this extra charge. So she left $7.00 on the register and then did pay pass for $7.50. To me, it is dishonest and a theft as far as I'm concerned. Based on principle, I will never go here again and I will tell everyone I know to go anywhere but here.