Best ADA in Phoenix AZ

First service guy replaced a part which cost $434 for part and service. Invoice stated everything was checked. Next day, the a/c still wasn't cooling so we called for service again. Another service guy found multiple issues. Total for the second day totalled $1,390 which included replacement for the part that was done the previous day. Clearly there were huge issues missed in the previous assessment. Called the main number for help but the person was not interested in helping. Do not use this company.