Terrible service. Overpriced. Didn't back up the...

Terrible service. Overpriced. Didn't back up their "guarantee." Had one service technician say my air conditioner was completely out of freon when my air conditioner didnt work two days after they came to fix it. They then told me to really fix the system I would need to pay an additional $300. I declined, as it should've been covered by their guarantee. Two days after that, another service technician from Genz Ryan stated the freon was full and that my air conditioner waz working properly. It has not worked correctly after Genz Ryan has performed their service to "fix" my unit. When I tried to give them an opportunity to make it right I was told a manager would call me. Manager never called. I then called to speak to a manager, as they did not follow up like they said they would. Apparently they weren't available when I called as they hadn't followed up. The customer service representatives didn't listen to what I was requesting and only spent time trying to talk me out of speaking to a manager after I've called several times to fix my issue. They've been extremely unethical in how they've behaved. I wouldn't advise anyone doing business with them. UPDATE: Genz Ryan did give me a refund for the work they provided. I would still caution people considering using them for HVAC service.