for this job, I did a super tune up on a two system home when I arrived at the thermostat was set to 72 but the temperature in the home was 78. At the air handler I noticed one of the unit units only had an eight Delta. The low pressure line on that unit was frozen indoors and outdoors. Capacitor on blower motor was out of tolerance. Primary drain lines are restricted or clogged. At the condenser, the fridge air unit had a capacitor out of tolerance And a one subcool. The Lennox had a four subcool. At this point, I decided to let the homeowners know the state of their refrigerant and went over all the other concerns as well. I explained that it would be best to have a comfort advisor Come out and talk to them about system replacement. After completing my job, I requested the $150 payment fee and was told that they would not pay the amount due to not topping them off on Freon. I asked politely one more time and went ahead and left.