This company is a complete scam. They initially of...

This company is a complete scam. They initially offered me free diagnostics for an issue with my heater and then as soon as they come to my house, they state that they need to charge me $299 for diagnostics because my system is "complicated". Then when I call the Houston office upset at the situation, the office staff claim that diagnostics charges are not a thing and will "talk" with the technician. The technician still didn't diagnose my system and used diagnostics from my 1st company that I had called, as John Moore was my second opinion to give me an estimate. This is a complete sham of a company and very unprofessional.