I purchased a voucher to have vents. Air unit clean. The guy came to my house, up on entering he said... I'm going to have to charge you and additional 300 dollars. Mind you the deal was for 29.99 I could get unlimited vents cleaned and one main return and six feet of dryer line... for 29.99. Which you pay up front! Never deal with Social Living and AIR VENT CARE... THE ADVERTISE WITH AND DONT DELIVER! I'm out of my money with no service!