He wrote in a letter of complaint to the King.
He was going to have to write a letter of complaint.
He said the town has received 33 letters of complaint just this summer.
She said the program had received about a hundred complaint letters.
A letter of complaint to the company has been ignored.
I've written a letter of complaint and they've promised to look into the matter.
He'd written them a letter of complaint, but they never replied.
Executives say they have never received a letter of complaint.
"You can write a letter of complaint," said the old man.
I receive many letters of complaint and concern about this.
