I have been an AC 100K status holder for 7 years. As of January, it has been nearly impossible to get an upgrade. It seems AC is selling off every available seat, particularly with the auction system. I have called the SE Concierge and they have told me I am not the only one complaining. I specifically asked how many passengers were upgraded on flights I was denied an upgrade on. For 3 flights in question, the answer was one. All this despite my requesting an upgrade 14 days in advance only to be waitlisted. I then tried to book a business class seat and saw a number of available seats. Within 30 minutes of making a request, I got an email inviting me to bid for an upgrade. It was clear that AC is waitlisting it SE customers even when an upgrade is requested at the earliest possible opportunity. On February 1o, I called about another waitlisted request and asked why I could not get an upgrade at the time of the request even though there were 5 seats available in the business cabin. Seems that had an impact as the next day, my flight was upgraded. AC needs to hear from its frequent flyers. I understand its efforts to monetize available business seats but if even 100K flyers can't get an upgrade, what is the benefit of giving all my business to AC?