I called John Moore for my summer AC tune up and t...

I called John Moore for my summer AC tune up and technician said I was low on freon/refrigerant(1/3 full) and there was a possible leak. He looked at my inside system and said he saw no leaks so it was probably really small or the system was not charged with freon appropriately. He said it would cost me $399 to recharge it and I figured I would think about it. I called my home warranty company and they sent someone out who said NOTHING was wrong with the system. My system was FULL AND DIDN'T need freon. This is soo UNETHICAL! He would have charged me $399 and done DONE NOTHING because he can't add freon to a system that was full.