Arrived to perform Ac tune up. Customer has no concerns. Set thermostat call for cooling. Observe indoor unit, service duct work, air filter, electrical connection, condensate system, coils and performed temperature readings. Return: 69.9* F Supply: 52.8* F Observe out door unit, service coils, electrical compartment, motors, refrigerate lines. Ac system operating ok at this time. Went over estimates. Customer didn't want to move forward with any estimates. The customer want to receive all information to email.