Kenny’s home comfort

At first Kenny seemed great, super friendly, ready to sell me a new AC unit. I am a single mom, waited years until I could afford to do so, so I was super excited. Fast forward to present day, if I could give 0 stars I would.
At initial install he told me that once it was hot to have him come out and check the charge. So on June 18th, 2020 I contacted him to have come check the charge since it wasn't cooling well. I noticed that there was water all around the indoor unit which caused water damage to my drywall, pipes were frozen inside and outdoors. He basically blamed me because I was supposed to have him come check the charge. He came out and checked the charge and did an adjustment and left.I noticed after this that unit began making a weird rattling noise while it was running, not constant but off an on. Two weeks later on July 3rd my house wasn't cooling properly, would not get below 78. I texted and received a message that they were closed for the holiday weekend and would reach out Monday the 6th. He reached out Sunday evening and gave me on appt option for 1030am on the 6th. I said I couldn't do that because I had to be at work. I tried everyday for over a week to have him come and look at the unit and inspect the ductwork to see if there was a problem. The only response I got was that they gave me an option for an appt and I refused the ONE option and that when he checked the charge the unit was fine.
I contacted another company to come and look at my duct work and see if they saw a problem. While they were there the technician heard the noise coming from the unit and checked the charge on the unit because the noise was not normal. HE DID NOT PERFORM ANY WORK TO THE UNIT, ONLY CHECKED THE CHARGE. He recommended in his notes that Kenny come and look at the unit and that no work had been done. He also noted that the piston placed was not code, and that the wiring used on the unit was the original and should have been replaced.
I relayed this to Kenny and his response, the quickest one yet, was that him checking the charge voided my warranty with his company.
I was NEVER given any paperwork, emails or anything stating what the warranty included or what could possibly void that warranty. Despite me asking at least 6 times for a receipt stating I had paid in full, for information about the warranties, and a booklet about the unit I never received any of it. The only thing I ever received was the original estimate with my down payment that stated a 10 year parts warranty and 2years labor. After him saying that he would try to work things out with me, he ignored me for five days. When I finally was able to speak with him on the phone he was loud, rude, and ended the conversation by hanging up the phone after saying that he was done with me
I have contacted the BBB, I will not be bullied by this man. DO NOT USE THIS COMPANY.