I was not let into an edm concert on 29th of october just because I had a bar ban. The ticket never mentioned that i should check with venue rules and regulation. So i think the organisers who issued the ticket were inviolation to the rules on the ticket! Please advice!
What is the name of your state, Faraz ahm3d, or, if not in the US, what is the name of your country?
If you are located in Canada (home of the Boodang events), you should know that this site handles US law questions and legal concerns only. That said, I can tell you that it is up to individuals to inform themselves of rules and regulations. If you knew you were banned from the bar, you should have known you would be banned from the event.