Your next-door neighbors borrowed your vacuum cleaner. When they returned it, it was damaged.
You were not happy with the grade you got in an important class.
You checked you bank statement and noticed that there was a deposit of $ 1,000. You didn't make the deposit. You´re sure it was a bank error.
You sat on a park bench that had wet paint on it. You ruined your clothes. There was no "Wet paint" sign.
You bought a camera on sale at a store, but it didn't work right. The salesclerk said, "We can´t do anything about it."
A friend gave you an expensive vase for your birthday, but you didn't really like it.
I'd write a letter to the city council and ask them to pay the damage.
Maybe I´d ask them to repair it.
I´d probably wait until the next month to see if the mistake is corrected.
I guess I´d take it back to the store and exchange it for something else.
I think I'd make an appointment to see the instructor to talk about it.
I guess I'd write a letter of complaint to the manufacturer.