A FlyerTalk Posting Legend
Join Date: Sep 2012
Location: SFO
Programs: AC SE MM, BA Gold, SQ Silver, Bonvoy Tit LTG, Hyatt Glob, HH Diamond
Posts: 44,316
I don't think you have any grounds for compensation.
You made your original flight.
I'd definitely write in about the experience (less emotion, more facts) and say it made the situation more stressful and confusing than it needed to be, and they might throw you a token goodwill gesture.
And hopefully retrain the FA.