the squeaky wheel gets the grease

English

The person who complains or speaks up most loudly receives the redress or attention which he or she seeks.
- 1995, Roger Zelazny and Robert Sheckley, A Farce To Be Reckoned With, Bantam, →ISBN, p. 13:
  You know perfectly well that the squeaky wheel gets the grease, and that if you don't complain nothing ever changes.

the person who complains most receives the attention