Dallas BBQ review: service

My group of 7 was quoted a time of 15-20 mins. After 40 minutes waiting no communication one of the members of my party went to the host/hostess desk and was told they cannot accommodate 7 people. So I walked over to speak to the mgr Lyn who proceeds to debate with me . My statement was if it was taking longer because we are a larger party we could have been presented with options instead over passing us over. He said that the time is approximate which I am aware of. I don't appreciate the manager arguing with me. A manager is supposed to handle himself better. Another employee interceded in order to diffuse the situation. She was much better at addressing customers.