Blue Sky Duct Cleaning - William Allen Living Social RipOff, paid 49.00 for a scam promotional value of 230.00 Kansas City Nationwide

I signed up for a Living Social special to have my ductwork cleaned. Supposedly for $50, we were suppose to get a $230 whole house cleaning. First off, they kept calling and tried to reschedule. The day that they were suppose to be here, they said that they would be here to work between 3 & 5. They showed up at 4:00.When they arrived, they wanted another $100 and we were told that if we didn't pay the extra $100, we had a choice of having the intake or the returns done. We chose the returns and asked for a receipt. We were told that we could not have a receipt, because it would misrepresent them as a business, since they could not do a complete job. So, what did we pay for? The man came out and used a shop vac on maybe 6 returns at the most and was done in 15 minutes. It seems as if this is not the first time that this has happened across the nation. Why are they still in business.