Strings Italian Cafe review: Descrimination 1

Myself and my friend tried to din in at this restaurant and they told us that "we're closed", which is weird because their business hours said open from 10 AM to 9 PM and at the time we entered it was 8:09 PM on a Saturday night while there were people sitting in the restaurant eating with all the lights on? My friend said he's been trying to go in their for the past few months and we didn't make a big deal out of it until this happened to the 6th time a row and it was so obvious because other customers were eating in there. We feel like they're discriminating against us.