"To make a complaint" means expressing dissatisfaction or dissatisfaction towards a person, company, or organization about something they have done wrong or a mistake they have made. Full definition
All of this means you get to your favourite content faster, which makes complaints about the multitude of Home screens a little irrelevant. (techradar.com)
Is there a procedure for making a complaint against an NHS worker? (law.stackexchange.com)
The letter calls for Labour to reveal who made the complaint against him and the words used that have caused offence. (theguardian.com)