Hi - I just called the number back and got a recording.  This firm is calling on behalf of some benefit (it's not clear which) trying to sell tickets for $40.  You are encouraged to leave your name and number if you want to be added to their 'in house' do-not-call registry.  According to the message, their client is not affected by the national do-not-call registry.  I chose not to leave my name and number mostly because they do not truly identify themselves.