First find out for sure if they are fake or not then if they are contact the web cite to see if u can get your money back from them be sure to be really bitchy if you on the phone it usily helps u get what u want if that doesn't work you could contact the police as it is fraud but if they weren't super expensive its probably not worth your time and lastly if you want cheep tickets use stubhub I've used it a bunch of times and the tickets are always real plus some times you can download and print off the tickets witch is always great if ur in a rush or something (I'm not a stubhub rep btw)
I would call the tour customer service or whatever and verify the tickets. If they can't confirm them, obviously they are fake. If they're fake, chances are you won't be able to return them. However, if you want, try contacting the place you bought them and get your money back. If it's a law office they're from, you might have some luck.