We went to this restaurant as a group of five. We found from their website that they have lunch menu "M-F 11-3 Saturday 12-4"
http://www.thaibasilchandler.com/chandler_lunch.html
It was Saturday and when we arrived there, the waitress denied it. When we showed the website she still denied it after we drove all the way there. I asked that to be honored as it is usually done in USA restaurants and she still said she won't do it. What a rudeness.