I bought a house a couple of months ago. The property was marketed as having air conditioning. At the time of purchase, the real estate agent informed me that the air conditioning wasn't working, but assured me that it would be fixed. The agent is now saying it is a matter between the seller and myself. The seller of the property has told me that he has no intention of paying. Do I have any legal rights under Property Law, against either the seller or agent, in this situation? Or was I gullible by accepting the agents word?