
Call them up, explain your concerns and give them another shot. Don’t e mail.
I have an AC business. Installed a unit the other day, it was 100° out and the job was torture. Unit was located on the side of the house, no shade or breeze.
Torture......check temp reading in the pic.
Got it done, collected and left.
Homeowner called a few hours later pissed, house wouldn’t get below 80°. Went back and checked.....unit was fine. WTF.
Told her to give it more time.
Bout 9:00 that night she called back.....really pissed.
I went back. Turns out her thermostat was programmed incorrectly, by her husband, and it kept shutting the unit off. Sometimes shit happens.
Give them another shot before condemning them.