If you say it's FREE on your birthday, then offer only 50% off when you get there...that's misleading. You should just write 50% off. We're never coming back.
We had dinner here, and this was the worst experience we have ever had at a restaurant. The waiters barely spoke English (which is not usually a big deal for us) but she was rude and impatient. The food was not very good either. I would definitely not recommend this restaurant.