Business ProfileforRM Mullinix Co Inc

On July 5,2020, we purchased an ***************** 4 ton ac/heat pump unit for $16,443. The unit was installed about 10 days later. There were problems installing the unit. Over next two years, we kept the service maintenance membership and had to call several times for issues. A major issue was water damage from a cracked pan in summer of 2021. They did not pay for the cost of Sheetrock repair. Nor did they replace the cracked pan.Recent issue: On Nov 12, 2022 we wake up with no heat. It is a Saturday and they sent a repair guy from ******* who charged ** $159.95 for diagnostic charge. No heat caused by low pressure.We also paid $276 for maintenance membership on that day.Nov 14- Technician comes and orders parts we need and will get on their schedule.Nov 28-I called because I have not heard from them, but left a message bc no one answered.Nov 29- called RM Mullinix back bc they never returned my call. I was informed that the part will take 4-6 weeks. I asked about using emergency heat since I had guests coming. I was told a technician would call next morning.I never received a call.Jan 2-called at 2:10 pm. Answering service took my call bc they were closed.Jan 3- called back at 1:30 pm. They are waiting on a sensor. Should get a call by Jan 5 Jan 5- I called at 3:00 pm bc they never called me. Schedule me for Jan 10th in morning. Job will take 4-5 hours.Jan 10- no repair men show up. I called Mullinix to ask why, only to find out they rescheduled me WITHOUT letting me know RM Mullinix has yet to repair the unit. I receive no calls from them for service, even though we paid for the service maintenance membership. How can this be resolved?