Dodgy dealer ??

[Jamesxx]

I've recently ,due to the warmer weather finally arriving , discovered my air con isn't working and I'm in no doubt that it hasn't been working before I bought the car .

I'm still arguing my case with the dealer who sold me the car , but during our "chats " , I discovered that the car was fully checked and got ready for sale 5 MONTHS ,and a few hundred miles done ,before I bought the car , and never had been checked over again .

Are there rules about the lenght of time a car can be classed as fully checked before a sale ??

Help please !