Update - Paul did follow up with me and I imagine this was just a front desk problem. I'm very happy with the work they originally did and feel way better now that they have contacted me. Original posting - My new AC (installed 2015) stopped working 6 days ago. My phone messages (day 1, day 3, day 6) and 2 on-line contact requests have not been responded to. I've called someone else, and they came today.