2007 2.5t closet downflow R22 mobile home. System down upon arrival. System trippng on thermal overload. Leaks detected in evaporator coil. Evaporator coil has extreme rust and oil stains visible. Refrigerant charge below manufacturer tolerance. Blower wheel is heavy with build up. Biological growth throughout. Condenser fan motor has been replaced before. I shared all information with elderly homeowners, they understood that the age and performance of the system has been getting worse. They claimed to have someone a few years ago put refrigerant in. After helping them understand the next possible steps, they had initially agreed to a CA. Then decided to decline. Claim they have a house in Crowley they will move to. Claim they are going on a cruise in the morning and won't be home all week. After my offerings, I explained that we can't be held accountable after my visit and they agreed. Declined work, system shutdown on thermal overload. No cellular service at location.