nsvcox in Calgary

Had a door-to-door salesperson come to my house (Jesus was his name), he was very nice and informative, talked us into getting a new furnace (ours was very old). The technicians who came to install were great, they even came back as it wasn't quite working right and fixed it for us. Everything afterwards has been terrible in regards to getting customer service. I was told we would get the first month free, but when I called in (over 5 times, each time being told a manager would call back which never happened) I was basically told if it wasn't written down I was SOL. Fine. But I have been trying to call to get the yearly tune up and inspection I was also told was included and cannot get through to anyone or get a call back from the website link. Alright product, good techs, but terrible customer service. Wish I had gone with a different company.