Best Heat Tune-Ups in San Antonio TX

This company was referred to me through my insurance company. They came out did their assessment and stated they could fix my A/C problem. After being given the estimate my insurance company agreed. Blackbelt started its repairs then a few days later stated it would be 20,000 and stated I needed a whole new ac unit. Why was this not realized when doing the assessment and writing up the estimate? Why even start work on an AC unit that they claimed could not hold enough power. My insurance company and I did not agree and another company came out all that was needed was a new refrigerant line and more Freon. They also stole my thermostat that was worth over 100 dollars and replaced it with a very cheap model. I asked it be returned and Gabriel stated it would but never was.Mr.Gabriel I have all the documentation to back up my review. I am not a spammer nor competitor.