Metro Entertainment Ticketsplus Charged me 5 times the amount of a theater ticket, used a website that purported to be Boston Opera House S. Windsor, Connecticut

I thought I was on the official theater website the first day tickets went on sale as it advertised Boston opera house as the website.  I did not realize it was a scalping agency.  They charged me $140 for a $33 ticket.  3 tickets cost $500, $21 a piece for processing and $15 to ship  regular mail.  An hour later I realized that I had been ripped off but they would not cancel my order.  They did not even give me a row or seat number, just a huge general area.  An order at the official Boston Opera house for the same show cost $33 a ticket with a $9 processing fee, no charge for delivery through ticketmaster.