Empire Plumbing and Air Conditioning - Anthony Liberatore (Owner) Questionable business practives Phoenix, Arizona

Our company owns a rental property in Scottsdale. Last week Empire came to inspect the water heater which was not working. I spoke to the tech, who said "the dial wasn't turned up and that corrected the problem"; several days later, the water heater was not working and the same tech came out and now said the 2 thermostats on the water heater needed to be replaced for $500+ dollars. I contacted my home warranty company who sent a different contractor who replaced the elements, which corrected the issue;

it was not the thermostat.My complaint is as follows: I do not want to be charged for 2 trips when the tech didn't properly diagnose the issue on the 1st or 2nd visit. I do not mind paying for 1 trip charge, but being forced to pay 2 when the job was not done correctly to begin with is not acceptable. I am concerned of the tech's improper diagnosis. I could have ended up spending $500+ on something that was not needed to begin with. This is irresponsible on the part of the tech and can cause you issues with the Arizona Registrars' Office if I were to file a complaint (which I do not plan to do as I understand mistakes happen). I have requested work orders for both visits from Empire but have yet to receive them. I communicated with the owner Anthony Liberatore who said he would "investigate" this. I don't know what there is to investigate. I really don't expect to hear back from them at this point .They are NOT responsive or competent to be in this business, in my opinion.