Or pretend to disagree.
Or pretend to be upset that you had the temerity of bringing forward disagreement.
Sometimes they say one thing and you feel like you were punished for complaining, but their actions are affected by your complaint.
Sometimes you get the opposite, where the person is like yeah yeah, totally… and then nothing happens.
I’d rather have the no no, how dare you complain, followed by positive action on the problem.
It’s taught me that I should complain anyway.