Performed Ac diagnostic package unit roof. Found system low on refrigerant again. Client doesn’t want to spend anymore money, client upset that after the system was charged last week now it’s not working. Client wants there money back, I told them I would ask. But since they didn’t do the recommended repair last visit not sure. The system is low on refrigerant again needs to be charged and dyed to find the leak in the system. System is blowing air just not cooling, lines freezing up. Went over options with client. They are going to get another company out for second opinion. Refrigerant pressures 24/259 r410a