Are they cancelling upgrade classes outright? Or are they just shuffling class dates around? I've been around long enough to know how these things work. Not enough CAs to fill one vacancy bid so they cancel it and funnel everyone into another class down the road.
Either way, keep your chin up Mesa. I'm not a fan of Mesa as an airline or JO as a person but wish you guys the best.
*Edit: ^^Looks like me and BeatNavy posted at the same time. Looks like I was right! lol...