I usually enjoy Copa Airlines, and I fly them often. At this point in time, however, they have me spitting nails. I have had three very legitimate complaints about which I have written to their CS department this year. I have flown them for years, but this year their service seems to have taken a dive. The biggest complaint, however, is not the events that led to my complaints, but their total failure to respond with even a "We're Sorry" email. Having struck out three times with trying to get the issues resolved through their online contact channels, I wrote an email to their CEO. My email outlined the complaints, but focused on their failure to reply to them. It has been over a week now since I wrote to him, and it appears that the non-response policy is trickled down straight from the top. I haven't heard a word in reply to my well written (if I do say so myself) outline of the events and the need to reply to customers to keep them from feeling insulted. I have opted for Taca on several new bookings this week, and will continue to do so until and unless they prove to be equally inattentive should a problem arise. Thank goodness we now have them as an option within *A, as Copa had been the only choice within many of my normal itinerary destinations.