HORRIBLE COMPANY! They replaced a Carrier Infinity...

HORRIBLE COMPANY! They replaced a Carrier Infinity Unit and dented a bunch of the fins and the outside casing. They said we are "Out of Zone" now and won't service the unit that they installed in Jan 2018. It hasn't worked in a MONTH. The office staff said they would continue to service our A/C and now they say they won't come out here. It didn't work right when they installed it and they said it was just the different model, but I have a feeling they didn't know what they were doing because we ZERO A/C and our heat didn't work right in the winter either.