My husband and I bought our house in December and ...

My husband and I bought our house in December and the AC had been installed 7 months earlier. A couple weeks ago we noticed that our AC was leaking and we called service america they informed us our warranty was up because it was past the 1 year guarantee and it would cost $100 to have someone come look at it I said even though you are the ones who installed it? They insisted. We had two other companies come look at it for free who had very high ratings. They told us it looked like it had been installed wrong from the get go. So I called service america back asking if they would come and look since it was wrong from the beginning even though it didn't actually leak until the heat got the best of their crappy job. I spoke to someone in customer service (maintaining my politeness even though this has been extremely frustrating) she got an attitude with me then later informed me that there is nothing they can do because it had to of passed inspection. I'm not sure how they were able to do that because our drip pan was clearly installed diagonal. I did speak to someone in the presidents office later who was politewho should probably retrain their customer service department but was still unable to do anything about there crappy job