Jessica Arredondo wasted our time and refuses to pay Fullerton California

Jessica Arredondo scheduled an appointment to come repair their pool heater for 8/7 between 8 to 10 am.  Technician arrived at 9:10 am, two junky cars in the driveway, knocked at the door, someone inside the house looked out the window but wouldnt answer the door, gate was locked.  We were told when the appointment was scheduled the gate would be unlocked.  This  was well out of our service technicians route this day, inconvenient waste of over an hour, a service call charge of $85 applies per company policy.  They have been non responsive to invoices and phone calls to collect