The squeaky wheel gets the grease

MEANING:
You get better service if you complain loudly.

HOW TO USE IT?
“Mom, can I pleaseee get a trading card?!”
“No.”
“Pleaseee!! Pretty pleaseee! Mom, I’ll do anything!”
“No.”
“But mom, the squeaky wheel always get the grease!”
“Okay, just one packet.”
“Thanks mom, you’re the best!”