Camping World of Tallahassee

Took Camper in on Mar 29 2012 to have bearings in living Took Camper in on Mar 29 2012 to have bearings in living room slide replaced. I was told it would take 4 hours to replace when parts arrived. Was cal Took Camper in on Mar 29 2012 to have bearings in living room slide replaced. I was told it would take 4 hours to replace when parts arrived. Was called on 13 April 2012 that wrong parts were recieved and would have to be reordered but there were no numbers on slides. Well I went to camping world and talked to Mickey (service advisor) I took him to the Motorhome and showed him where the numbers were located and read off the numbers. As I was leaving the motorhome I walked by the right front corner and the front corner was damaged. someone at camping world had run into the front end. I had a set of tires installed in Dec. 2010 and since that time everytime I check tire pressure the valve won"t seal and I lose air. I have complained to camping world 4 times and they say there isn"t anything they can do. I googled valve stems with filters and found they were supplied with the balancing material. More