Complaint Review: Best Clean Air Duct Cleaning

I purchase a Living Social deal on Sept. 6, 2012 for Best Clean Air Duct and Dryer Vent Cleaning service for $49. Two appointments and 2 hrs later than the (window) time I was given, Igor, shows up and states that this deal is a "discount" off the whole house service which includes: unlimited vents, one main, one return plus dryer vents. The whole house service was estimated at $500. I live in a townhouse - no basement. When I lived in a house, it wasn't even that much! No service was provided as we asked him to leave. Online right this moment, I see the exact same deal offered on 8coupons and Amazon local deals. Again, it does not state it's a discount....don't fall for their scam... I'm out $49, I hope to spare others....